Back to top

/ FAQ

Sattel

Is there a weight limit for Tune saddles?

For our KOM-VOR (Kom-vor and Kom-vor+) saddles, the weight limit is 90kg. All others are released up to 100 kg.

Are Tune saddles compatible with my seat-post?

Principally there are no restrictions except that the seat-post producer prohibits the mounting of carbon saddles.
The saddle rails of Tune saddles are high-oval, problems may occour with lateral clamp rings. However, special clamping shells are often offered.
You can find more information in our product descriptions.

With which torque is my Tune saddle fixed to the seat-post?

Due to the different clamping mechanisms it is not possible to specify an exact value. The torque is prescribed on behalf of the producer and needs to be respected.

Is it possible to re-cover the Speedneedle and what are the costs for it?

Yes, it is possible. Please refer directly to Tune (Germany) or to the responsible distributor (outside of Germany).

With which seatposts is the Skyracer compatible?

The Skyracer is compatible with any commercially available seatpost.

The SKYRACER has two saddle stays with a diameter of 7mm and a center distance of 43mm. The setting length is 75mm.
The seating area is located in the rear area of the saddle, which is why the mounting struts are mounted directly under the seating area.

 

Is the Skyracer comfortable?

Whether the Skyracer is the perfect saddle for you, we cannot predict. But we can give you the necessary cornerstones so that you can decide this for yourself.

The ergonomic shape of the SKYRACER deliberately minimizes pressure on your perineal area. The forces are introduced directly into both ischial tuberosities. The ischial tuberos are able to hold your weight to wear over a longer period of time. At the beginning, such saddles can look unfamiliar. As when you descend from your bike in a different way. But you will quickly get used to this health-optimized form. Because the anatomically adapted specific concave-convex saddlecloth offers you two seating positions, relax / race. The seat area is generous and flat. With a width of 126mm the Skyracer fits on all common buttocks.

In addition, the Skyracer, with the narrowest saddle point on the market and the curved side edges, combines lightweight construction with outstanding comfort.

 

 

How is the Skyracer recycled?

The SKYRACER is the world’s first carbon saddle that can be completely recycled.

The saddle consists of small single long-fiber carbon snippets, which are not held together as usual with epoxy resin, but by an aviation-approved thermoplastic material. For recycling, the connected carbon snippets are returned to their original state by means of “electrical fragmentation” (similar to a lightning strike). Afterwards, the carbon snippets loosened by the thermoplastic can be used again for the production of a new Skyracer.

That is not enough for us. This process is possible up to 5 times!! We guarantee a holistic recycling cycle.

Serial number/ seal sticker tune saddle

Our saddles are subjected to strict quality checks. Once the saddle has passed all the tests, it is marked with our seal. You can only be sure that you have an original tune saddle if it has a seal. If you have a saddle without a seal, it is either older than 2014 or it might be a copy.

 

 

 

 

Notubes

Is it possible to ride the NoTubes ZTR Crest 29“ rim with Road/Cross tires?

Yes, it is allowed to ride the ZTR Crest 29” rim with the following widths and pressures:
1. min. Tire width: 28mm
2. Max. Tire pressure (with hose):
a. 5.5 bar at 32mm
b. 6.0 bar at 30mm

One Shot Dichtmilch

Can I use CO2 cartridges?

Yes, the ONE SHOT sealent can be used with Co2 cartridges.

 

How much do I need to use in a roadbike tyre?

An exact amount is difficult to say. Too much is unnecessary weight, too little may not completely dene the tyre. We recommend slowly testing to find the perfect amount. The quantity can vary greatly depending on the tyre size and model.

Can the ONE SHOT sealent be used with latex hoses?

Yes, the ONE SHOT sealent can be used with latex hoses. Even tubular tires, with latex hose are no problem.

How do I fill the ONE SHOT sealent?

Our 60ml ONE SHOT bottle enables a quick and clean filling of the sealing milk into the tyres. The integrated valve tool in the bottom of the bottle allows the valve to be mounted immediately. The filling trunk is placed on the valve and ensures a clean filling of the sealing milk…. So the assembly is really fun!

Is the sealing milk also applicable for road bike tubular tyres (tubulars)?

Yes, the sealing milk is also applicable for road bike tubular tyres. The sealing milk can also be used with latex hoses.

How can I remove the ONE SHOT out of the tire and dispose of it afterwards?

ONE SHOT is biodegradable and can be removed completely and easily with the help of warm water, some soap and a brush.

Since ONE SHOT is biodegradable, no special disposal is required.

Does ONE SHOT work below -10°C?

We specify as the coldest application temperature for ONE SHOT -10°C / 14°F, up to this limit our sealing milk works without any problems. ONE SHOT also works up to -17°C / 1°F, but here the sealing time can be slightly delayed and there can be an increasing viscosity.

Why does my tire not seal properly with the ONE-SHOT liquid?

There may be several reasons for this.

The two most common reasons are:

  1. The tire hasn’t been cleaned properly beforehand.

Often there are still substance residues in the inner rim of the tire, for example release agents, which prevent the sealing. In order to get the best possible result, we always recommend cleaning the tire with soapy water and to scrub the inside with a brush. For the tire to seal correctly, it should be free of any dirt and release agent particles.

After cleaning, leave the tire to dry completely. Firmly shake the bottle before use. When filling, please beware our recommended quantities. Do not mix the ONE-SHOT liquid with other products!

The installation with a compressor simplifies the “setting” of the tire but is in no means necessary. The tire must sit well in the rim bottom. For this, only move the tire when it is inflated. For a better distribution of the liquid, swirl it well back and forth within the tire. inflate tyres to the desired tyre pressure. After 24 hours, check the pressure again.

  1. The rim tape does not seal properly

To install the rim tape, the rim must be grease-free. For this, clean the rim in advance with a bit of alcohol. Only then glue the rim tape to the rim bottom.

Our Hack: Insert a tube after gluing the rim tape in the tire. Inflate the tube and leave it for 15 minutes. Thanks to the tube the rim tape will lean itself perfectly against the rim bottom.

The rim tape as well as the valves need to be assembled properly according to our instructions. To do so you can watch the following video.

 

 

Laufräder

Can I use CO2 cartridges?

Yes, the ONE SHOT sealent can be used with Co2 cartridges.

 

How much do I need to use in a roadbike tyre?

An exact amount is difficult to say. Too much is unnecessary weight, too little may not completely dene the tyre. We recommend slowly testing to find the perfect amount. The quantity can vary greatly depending on the tyre size and model.

Can the ONE SHOT sealent be used with latex hoses?

Yes, the ONE SHOT sealent can be used with latex hoses. Even tubular tires, with latex hose are no problem.

How do I fill the ONE SHOT sealent?

Our 60ml ONE SHOT bottle enables a quick and clean filling of the sealing milk into the tyres. The integrated valve tool in the bottom of the bottle allows the valve to be mounted immediately. The filling trunk is placed on the valve and ensures a clean filling of the sealing milk…. So the assembly is really fun!

Is the sealing milk also applicable for road bike tubular tyres (tubulars)?

Yes, the sealing milk is also applicable for road bike tubular tyres. The sealing milk can also be used with latex hoses.

How can I remove the ONE SHOT out of the tire and dispose of it afterwards?

ONE SHOT is biodegradable and can be removed completely and easily with the help of warm water, some soap and a brush.

Since ONE SHOT is biodegradable, no special disposal is required.

Does ONE SHOT work below -10°C?

We specify as the coldest application temperature for ONE SHOT -10°C / 14°F, up to this limit our sealing milk works without any problems. ONE SHOT also works up to -17°C / 1°F, but here the sealing time can be slightly delayed and there can be an increasing viscosity.

Why does my tire not seal properly with the ONE-SHOT liquid?

There may be several reasons for this.

The two most common reasons are:

  1. The tire hasn’t been cleaned properly beforehand.

Often there are still substance residues in the inner rim of the tire, for example release agents, which prevent the sealing. In order to get the best possible result, we always recommend cleaning the tire with soapy water and to scrub the inside with a brush. For the tire to seal correctly, it should be free of any dirt and release agent particles.

After cleaning, leave the tire to dry completely. Firmly shake the bottle before use. When filling, please beware our recommended quantities. Do not mix the ONE-SHOT liquid with other products!

The installation with a compressor simplifies the “setting” of the tire but is in no means necessary. The tire must sit well in the rim bottom. For this, only move the tire when it is inflated. For a better distribution of the liquid, swirl it well back and forth within the tire. inflate tyres to the desired tyre pressure. After 24 hours, check the pressure again.

  1. The rim tape does not seal properly

To install the rim tape, the rim must be grease-free. For this, clean the rim in advance with a bit of alcohol. Only then glue the rim tape to the rim bottom.

Our Hack: Insert a tube after gluing the rim tape in the tire. Inflate the tube and leave it for 15 minutes. Thanks to the tube the rim tape will lean itself perfectly against the rim bottom.

The rim tape as well as the valves need to be assembled properly according to our instructions. To do so you can watch the following video.

 

 

Which rims are suitable for Tubeless?

All our clincher rims can be converted to tubeless by means of a belt, screwed valve and sealant.

Is it possible to remove the labels on the Schwarzbrenner rim?

The discreet stealth design is integrated into the top layer of the rim and therefore cannot be removed.

What is the point of an asymmetrical (offset) rim?

This is about adjusting the spoke tension.

The goal is to get the center of the rim over the center of the hub.
Therefore, the front and rear wheels are also opposite to each other and fed asymmetrically (see graphic).

The asymmetry on the left and right side gives you almost the same spoke tension.
This results in a more stable, stiffer impeller and less full relief of tension (similar to the Evo-Boost thought).

Double anodizing?

What is it?
Like the name says it, it means the wheel rim has been anodized twice.

What’s the point?
The double anodized compacts the surface and gives the rim a deep and durable finish.
.Concerning the brake flank, it means that it is black at the beginning and changes over time to a greying black.
The double anodizing is not an extra process that will keep the brake flanks black.
Our brake flanks have a sharp sawtooth profile. This means that the anodized surface rubs off with the mechanical stress of braking.

The brake linings and their adjustment have an influence on the wear of the rim. We recommend the swissTop BXP brake linings. We those brake linings we achieved the best abrasion result after 1,500 km and 20,000 hm. For a uniform appearance and the best braking performance, the brake pads must be fitted parallelly.

How long (for how many kilometers) does the rim stay black?
It is not possible to make an exact estimation or indication that would state exactly for how many kilometers the rim is going to stay black.
There is and remains a mechanical strain on the material.
Even the most up-to-date and expensive procedures cannot preserve the new neat surface of the rim.
As usual, this depends on the load of the bike, the area of use, the brake linings, the adjustment of the brake linings, as well as the personal braking behavior.

You may ask yourself “Well, then I better should get a silver rim straight away!”
Of course, this is possible.
However, the flank of the TSR 35 is not going to turn silver but a greying black.
Like a “mature” man. your rim is just going to look more “mature”.
So, it will stay attractive and doesn’t need any plastic surgery.

How does double anodization affect the TSR 35?

What is it?
Like the name says it, it means the wheel rim has been anodized twice.

What’s the point?
The double anodized compacts the surface and gives the rim a deep and durable finish.
Concerning the brake flank, it means that it is black at the beginning and changes over time to a greying black.
The double anodizing is not an extra process that will keep the brake flanks black.
Our brake flanks have a sharp sawtooth profile. This means that the anodized surface rubs off with the mechanical stress of braking.

The brake pads and their adjustment have an influence on the wear of the rim. We recommend the swissTop BXP brake linings. We those brake linings we achieved the best abrasion result after 1,500 km and 20,000 hm. For a uniform appearance and the best braking performance, the brake pads must be fitted parallelly.

How long (for how many kilometers) does the rim stay black?
It is not possible to make an exact estimation or indication that would state exactly for how many kilometers the rim is going to stay black.
There is and remains a mechanical strain on the material.
As usual, this depends on the load of the bike, the area of use, the brake linings, the adjustment of the brake linings, as well as the personal braking behavior.

You may ask yourself “Well, then I better should get a silver rim straight away!”
Of course, this is possible. However, depending on the circumstances, I have a carbon-optic rim for a long time.
However, the flank of the TSR 35 is not going to turn silver but a greying black.
Like a man. It becomes more “mature” over time. So, it will stay attractive and doesn’t need any plastic surgery.

Umrüstkits

Conversion kit: How do I convert a tune rear hub?

In this video we show you how to upgrade your Tune rear hub. All our rear hubs can be easily converted to different freewheel standards and widths.

To the hubs: http://www.tune.de/produkte/naben
To the conversion kits: http://www.tune.de/produkte/umruestkits
Tune tool for conversion: http://www.tune.de/produkt/tune-tool-08

Naben

What can I do in case the sprocket cannot be removed from the freewheel after the head lock nut has been removed?

It is possible that single sprockets eat through the bridge of the freewheel body in the direction of loading. The sprockets are the easiest detachable with the help of two chain whips, whereby the through eated sprocket needed to be turned contrary to the direction of loading. Remove edges and ridges with a file and mount again the cassette sprocket.

Is it possible to modify the volume of Tune hubs on the freewheel?

The volume is a typical feature of Tune hubs.
It is possible to reduce the loudness at short-term by adding more grease into the interlocking. Thereby the strike of the pawl onto the interlocking gets dampened.
A doubling of the pawl spring (two pawl springs are placed on top of each other) makes the hub louder as the pawls get pressed with more pressure in the interlocking.

The use of two pawl springs leads to a higher abrasion of the freewheel and of the pawls.

Is it a problem if the freewheel has grooves from the sprockets at the bridge?

Single sprockets always eat through the bridge of the freewheel due to the lower surface hardness of the aluminum freewheel towards the steel or titanium sprockets. This is normally not a problem, as the material gets compressed at that spot and the movement stops.

You can remove the sprockets the easiest with two drivers, while turning it into the opposite directions of the load. Protruding burrs should be removed with a file so that the cassette sprockets can be mounted.

Can I replace my carbon axle with an aluminum axle?

Yes, that is not a problem. However, you need to replace the whole axle and both distances.

Is it possible to exchange the XOT double bearing of my older hub with a single bearings?

Yes, when the hub has an aluminium axle, the XOT bearing can be exchanged with one 61802 (15x24x5mm) and one 61902 (15x28x7mm) bearing. You need to insert a thin adjusting washer (0,2mm) between both bearings.

In case the hub has a carbon axle XOT bearings have to be used!

Is it possible to maintain or exchange bearings?

Only industrial ball bearings are used in our hubs, which cannot be regreased. In case a bearing is completely abraded it needs to be exchanged.

Are old Tune hubs compatible with Campagnolo 11-speed freewheel bodys?

Yes this is possible, but must be tried individually. If you have problems please change the freewheel body.

Is it possible to convert my front hub to QR15?

All disc front hubs, built since 2009, can be converted to QR15 with a special conversion kits. The hub cannot be rebuild in case there is a spot for the allen key on the axle.

Can my hub be rebuilt to another axle- or free wheel standard?

Tune hubs get steadily developed and therefore details change over time. The colour of the free wheel has been changed during bigger changes, therefore the colour of the free wheel is important for the recognition of the hub.

The axle or free wheel standard might be changed with appropriate conversion kits.

Options for disc brake hubs (Kong / Prince)
Freewheel color: red blue
Shimano/SRAM 10-speed x x
Shimano/SRAM 11-speed x
Campagnolo x x
Sram XD
x
Quick release (135mm) x x
X12 (142×12) x x
Maxle (135×12) x x

 

Options for rim brake hubs (Mag)
Freewheel color: red blue
Shimano/SRAM 10-speed
x x
Shimano/SRAM 11-speed x
Campagnolo x x
Quick-release installation width 130mm x x
Quick-release installation width 135mm x x

 

How do I know the age of my rear hub?

You can determine more or less the age of the hub on the basis of the colour of the freewheel body.

  • BLUE = means a delivery from 2011 on
  • RED = means delivery between 2004-2011 (except Kong MK with 150x12mm)
  • GREEN or GREY = means delivery before 2004

Can the Kong (or Prince) hub be converted to the X-12 system?

How and how often do I need to maintain my Tune hub?

The maintenance of the hubs should be once a year. With regular use under extreme conditions (rain, mud, salted winter roads, transport in the rain) the hub should be maintained in shorter intervals. A regular maintenance of the hub ensures a long durability and optimal technical conditions.
What implies a regular maintenance?
The hub should be cleaned carefully in the assembled condition with removed cassette and disc brake and then examined carefully visual and functionaly.
When dismantled the bearings should be examined and the toothing system should be cleaned and regreased. Following up you find a maintenance manual in detail. Following up you find a maintenance manual in detail.

 

You can maintain your tune hub on your own, a maintenance manual can be found under Manuals.

Is it possible to change the width of Tune rear hubs (130mm>135mm; 135mm>130mm)? >>

Yes, it is possible.

For the conversion you need one of our conversion kits.

In which widths are Tune Fat Hubs available?

The Fat King front hub is available in 135mm (quickrelease) and 177mm (thru-axle).

 

The Fat Kong rear hub is available in 170mm (quickrelease), 177mm (thru-axle), 190mm (quickrelease) and 197mm (thru-axle).

What clamping methods does Tune offer?

Nearly all Tune hubs are suitable for quickrelease or thru-axle systems. At the time of purchase, you can choose the clamping method. Subsequently, a conversion with a conversion kit is easily possible.

Tune offers the following clamping methods:

Front:

• QR5: Quick release (100mm installation width)
• QR15: 15mm thru-axle (100mm mounting width)
• 20mm: 20mm thru axle (110mm mounting width), only for the dörte 20 and King MK hub

 

at the back:

• QR5: Quick release (135mm or 130mm mounting width)

• Maxle: 12mm thru-axle (135mm mounting width)

• X-12: 12mm thru-axle (142mm mounting width)

• X-12: 12mm thru-axle (150/ 157mm mounting width), only for the King MK hub

 

Here you will find an overview of the installation widths of the Fat hub.

How can i adjust the axial play of my wheel?

Abs with aluminium axe (except Princess and thru axles hubs):
The axial bearing clearance can be regulated by the right-sided adjustment nut (freewheeling side). Hubs from the year 2005 onwards are adjusted as described in the manual. Hubs from the year of construction approx. 1997-2004 are set as in the current instructions, but there is no recording to the axe here. The adjusting nut (aluminium piece with glued disc) must be moved by hand (or pliers). If it does not move, a warming of the nut can help.

hubs with carbon axe, princess and hubs with thru axes:
The axial bearing clearance can be adjusted by pass discs. To do this, the right-sided axis distance (freewheel side) must be removed. Depending on the type of structure, the axis distance is
-deducted (hubs for thru axes),
-beaten down from the inside (carbon axis from year 07/2008 and Princess) or
-removed by partially knocking out the axle towards the freewheel opposite (carbon axis up to year 06/2008).

Please refer to the instructions for use of the corresponding hub.

With which torque do the brake pads have to be fixed?

The Tune brake pad should be fixed with 5 Nm.

Any bolt securing material residue must be removed before reassembly.

Can I mount an 11-speed cassette on a 10-speed freewheel?

This depends on the cassette.

On a Shimano/Sram 10-speed freewheel you cannot assemble an 11-speed road bike cassette. It is 1.8mm too wide.

11-speed MTB cassettes are as wide as 10-speed cassettes. They can be used on a 10-speed Shimano/Sram freewheel. It is as wide as a 10-speed cassette

By adding a 1,8mm Spacer, 10-speed road bike cassettes can be used on 11-speed Shimano/Sram freewheel.

How do I recognize an 11-speed freewheel?

The Shimano/Sram 11-speed freewheel is recognizable due to a groove (see illustration).
The freewheel width of the Shimano/Sram roadbike freewheel is for Shimano/Sram 11-speed road bike cassettes designed. With a 1,8mm shim ring 8-/9-/10 -peed road bike cassettes as well as 8-/9-/10-speed MTB cassettes can be mounted.

11-Fach-Erkennen

 

Can the Kong (or Prince) hub be converted to the X-12 system?

It is possible with hubs produced after 2009. he axle (including distances) has to be changed. Together with the adjusting washers, the axial bearing play has to be adjusted. A X-12 hub together with another axle can always be converted to a normal quick release system.

Compatibility with new Campagnolo Cassettes (Chorus)

Campa freewheels, with new reduced pinion stops (since September 2015), are compatible with all cassettes.

Hubs with old Campa freeruns and pinion stops, can be easily converted. For this purpose, please contact our service team at service@tune.de.

What was the problem with the new Campagnolo cassettes?

The bridge has been modified. As a result, the cassette no longer stood flat on the stop ring. It collides with its shoulder whereby the complete sprocket is sitting a little too far outside. As a result, the entire sprocket package sat too far out. At the moment we are only aware of the changed contour in the chorus cassettes. However, we assume that Record and Co. also have changed contours

 

Can a King MK hub be adapted to Predictive Steering?

The King MK hub can not be adapted for use with for the Predictive Steering standard . No, seriously: We are aware of the fact that it would be a lot easier for our customers to convert easily our existing hubs with 17 mm to Predictive Steering standard only with end caps. Hereto we have made several tests during the development stage. However we noticed that the RS-1 lost considerably of its torsional stiffness due to the missing fork bridge. Inasmuch as this will not be compensated with a special axle and bearings, the front wheel would draw left from the track when braking. This has been already noticeable for lighter biker with 160er brake discs…

First aid for cracking noises from the hub

Crackling noises on the bike happen to appear an somehow belong to the nature of things.

The source of the annoying noise is in most instances not the hub.

Very often it is not coming from the rear hub but results from somewhere else at the bike. The hollow spaces your bike has work as a resonance body (especially with carbon frames) and therefore it is very difficult to determine which component is responsible for the unwanted noise. As a result, it is very difficult to determine purely acoustically which components are responsible for the unwanted cracking noises. Fortunately, in most cases it is possible to determine the source with simple tools from at home. This saves time, effort and money.

To remove the cracking noise you need to determine its source. Please try out therefore the following steps to find the cause:

1) It is up to the rear wheel?

  • Please check if the crackle comes from the rear wheel. Therefore exchange your actual rear wheel – if possible – with another rear wheel. Then find out while a test drive with different load scenarios (e.g. weighing ride, uphill, curves). In case the cracking noise is still there it does not come from the rear wheel.
  • As an alternative you can mount the rear wheel including the tune hub onto another bike (e.g. of a friend) and then make a test drive.

2) Is it due to the quick release ?

  • Exchange the quick release or thru-axle skewer. The noise results very often from the quick release. Bad clamping force, defect quick release etc. might be the problem. Poor clamping force can cause noise between the end cap and the frame. When you do not hear noises with another quick release, please check the quick release. Or the tensioner is defective.
  • Very importantly, the wheel must sit without play in the rear.

3) Is it really the hub?

If you have determined that the cracking comes from the rear wheel it can still be due to the cassette, rim, nipple or spokes.

  • Please check the spoke tension. Please press always with one hand, one side two spoke pairs together, they should not yield a lot. The spoke tension should be constant all around the wheel.
  • To determine if the spoke crossings are the source of the noise please stick a thin piece of cardboard for test purposes between the spoke crossings. Please do not use oil. Oil attracts dirt particles that eat into the spokes. In case the crackle disappears during the test drive, it is up to the spoke crossing.
  • It can also be the cassette (especially with SRAM XD cassettes with bolts). Please mount an alternative cassette for a test drive. In case you do not have any other cassettes for testing please take it off and clean carefully the freewheel and the cassette. At the end, you can remount the cassette with the indicated torque value. Note that the freewheel gearing is attached to the cassette toothing. Otherwise, this leads to abrasion of the free-wheeling bars or the freewheel can “slip through”.

Should you notice at the end of the test that the cracking noise comes from the rear hub than please contact our service (www.tune.de/servicecenter), we will help you along.

Why it is not possible to convert from 135/142mm to BOOST 148mm?

In our opinion, the rebuilt of a conventional hub into a BOOST standard in combination with distances is a “botched-up construction” and is not offered by us. The advantage of a BOOST frame is primarily the stiffness of the wheels. On the one hand we achieve this by raising the flange distance to improve the rear dish and on the other hand by enlarging the bearing spacing of the hub. An extension of the axle stubs leads to torsional weakening of the wheel stiffness and is therefore in our view completely counterproductive.

The BOOST standard is on the technical point of view a really good development, that we can confirm. It´s worth the investment but you shouldn´t save costs regarding the wheels!

details-disc_gd217655

Why 148 mm hub-spacing and not 150 mm?

The reason for this is the Q-factor. The installation width of 150mm requires an increase in the Q-factor, which is why the choice was made for 148mm. The Q-factor of 135mm and 142 did not change therby. Due to the increase of the width from 142mm to 148mm, the position of the cassette changed, what led to a change of the chain line consequence. In order to achieve the same shifting performance, BOOSTcompatible cranks are needed. For cranks with spiders an adequate chainring or boost spider is needed. The position of the chainring moves 3mm outwards equally as the cassette. The Q-factor as well as the crank- and bearing width remain the same. Tune offers already the Black Foot and Smart Foot cranks as Boost version, here we use absoluteBlack chainrings.

 

Surely some of you wonder why the hub producer did not adapted 150mm hubs. A reduction of the distances is not possible, that is why we have designed our own BOOST hubs. The work was worth it!

Does an 8-speed cassette fit on a Shimano 9/10-speed freewheel?

yes. With the help of our spacer 1.8mm for 10-fold, the 8-fold casette fits on the Shimano 9/10-fold freewheel.

Which freewheel for which 11-speed cassette?

New Shimano 11-speed MTB groups (XTR, XT, etc.) can be mounted on normal 10x freewheel bodies, while 11-speed road groups (Dura-Ace, Ultegra, etc.) require a special, wider freewheel body. Due to the wider freewheel body, the wheel stiffness is negatively affected, which is why we continue to install the 10-fold freewheel body in MTB wheelsets.
If you want to mount an 11-speed road cassette on your MTB wheelset, an 11-speed freewheel body can also be mounted on request. This must be stated in the order!

Can I adapt a King MK to Predictive Steering?

no. The King MK hub cannot be adapted to a Predictive Steering Standard. We are aware that it would be easier for our customers to convert existing 17mm bumps to the Predictive Steering Standard via end caps. We have also made a number of attempts at this in the development phase. However we noticed that the RS-1 lost considerably of its torsional stiffness due to the missing fork bridge. The front wheel pulls out of the lane when braking to the left. The whole thing would have to be compensated by a special axis and bearing. This was already noticeable for light drivers with 160 brake discs…

Is it possible to put a figure on the “considerably stiffer” Boost towards the standard widths.

In general we keep a low profile with percentage figures as the increase of the lateral stability may differ on the several rims. It can be said, that the stiffness of a 29er rear wheel with 148mm width is about 20% higher than as with 142 mm. The lateral stability increases about 17% at the front wheel due to the Boost standard.

Mounting and setting a Cannonball 2.0? How does that work?

We thought about “Playing lefty forks” and worked out a solution. The following video shows you how to perfectly tune our Cannonball 2.0 to the latest Lefty generation: The tool Tune Tool 08.18, press-out stamp s25 x37mm / article number WZ0222 as well as the pass disc set for all Cannonball hubs (each 4 pieces) with the Item number BNZ0303 are available.

How many “clicks” do tune hubs have?

Tune hub models have 27 clicks per 360° turn. Tune Hubs have a “27 tooth system”, in which 3 pawls intervene.

My 11 speed hub is larger than indicated. Is that normal?

Every millimetre counts!

shim_sramThere are some tricks necessary to place an 11spd cassette, as the almost 2mm, for which an additional sprocket is necessary, have to come from somewhere. Unfortunately a little longer freewheel body is in that case not sufficient, as the chain on the smallest sprocket could collide with the frame. Therefore our hubs get built a millimeter larger. That should not affect the assembly into the frame. The rim is placed 0,5mm excentric after a rebuild from a 10spd into 11spd freewheel. Normally that does not disturb. There is an exception with a very limited rear tire freedom. Here it is useful to center the rim again. This is easily possible with our wheels.

 

Conversion kit: How do I convert a tune rear hub?

In this video we show you how to upgrade your Tune rear hub. All our rear hubs can be easily converted to different freewheel standards and widths.

To the hubs: http://www.tune.de/produkte/naben
To the conversion kits: http://www.tune.de/produkte/umruestkits
Tune tool for conversion: http://www.tune.de/produkt/tune-tool-08

Sattelstütze

Can I shorten the seatpost?

Yes, the Starke Stück can be shortend. However, we recommend that we have the cut carried out. Any modification of the product that has not been carried out by tune will lose all warranty claims.

The Schwarzes Stück cannot be shortened for safety reasons.

How much clamping area does my seatpost offer?

In our graphic you can quickly see how much room you have for your seatpost.

Full length Min. Extension length Max. Extension length
Leichtes Stück 340 mm 160 mm 250 mm
420 mm 240 mm 320 mm
Starkes Stück 340 mm 160 mm 250 mm
420 mm 230 m 320 mm

 

 

Flaschenhalter und Flaschen

Can my drinking bottle be put in the dishwasher?

yes. Our drinking bottles are dishwasher safe.

They are also BPA- and phathalat-free and food-safe. However, no hot liquids should be filled in them.

Can I fill hot liquids into my tune drinking bottle?

no. We do not recommend filling hot liquids in our bottle.

Are Tune bottles BPA-/phathalat-free and food-safe?

yes. Our drinking bottles are BPA- and phathalat-free and food-safe.

Cockpit

Can I mount the Tune Barends (Hörnchen/RH1) on a carbon handlebar?

In Theory, it is allowed. However, the handlebar should be released for a barend assembly. The Tune RH1 should not be mounted in case the handlebar producer prohibits it specifically.

Can I use the PORTEUR to attach my navigation system over the stem?

Yes, it is possible. Technically, there is nothing against turning around the PORTEUR and attaching it to the two upper screws of the stem so that the GPS stands above it.

Help, my Sram Guide RS brake lever is not tight enough at 1NM on the Wunderbar. What can I do?

The Sram Guide RS brake lever is slightly oversized. Our Wunderbar slightly undersized. No problem!

The difference can be compensated, for example, with Carbogrip by Effetto Mariposa. Carbogrip builds up and ensures the desired tightness.

Werkzeug

I have a Campagnolo cassette and i want to use the Linientreu.

All 1/4 “bits fit into the bitmaking. For Campagnolo you need an extra Torx T27. This one is available in every hardware store and can be used.

Sitzzone

Is there a weight limit for Tune saddles?

For our KOM-VOR (Kom-vor and Kom-vor+) saddles, the weight limit is 90kg. All others are released up to 100 kg.

Are Tune saddles compatible with my seat-post?

Principally there are no restrictions except that the seat-post producer prohibits the mounting of carbon saddles.
The saddle rails of Tune saddles are high-oval, problems may occour with lateral clamp rings. However, special clamping shells are often offered.
You can find more information in our product descriptions.

With which torque is my Tune saddle fixed to the seat-post?

Due to the different clamping mechanisms it is not possible to specify an exact value. The torque is prescribed on behalf of the producer and needs to be respected.

Is it possible to re-cover the Speedneedle and what are the costs for it?

Yes, it is possible. Please refer directly to Tune (Germany) or to the responsible distributor (outside of Germany).

With which seatposts is the Skyracer compatible?

The Skyracer is compatible with any commercially available seatpost.

The SKYRACER has two saddle stays with a diameter of 7mm and a center distance of 43mm. The setting length is 75mm.
The seating area is located in the rear area of the saddle, which is why the mounting struts are mounted directly under the seating area.

 

Is the Skyracer comfortable?

Whether the Skyracer is the perfect saddle for you, we cannot predict. But we can give you the necessary cornerstones so that you can decide this for yourself.

The ergonomic shape of the SKYRACER deliberately minimizes pressure on your perineal area. The forces are introduced directly into both ischial tuberosities. The ischial tuberos are able to hold your weight to wear over a longer period of time. At the beginning, such saddles can look unfamiliar. As when you descend from your bike in a different way. But you will quickly get used to this health-optimized form. Because the anatomically adapted specific concave-convex saddlecloth offers you two seating positions, relax / race. The seat area is generous and flat. With a width of 126mm the Skyracer fits on all common buttocks.

In addition, the Skyracer, with the narrowest saddle point on the market and the curved side edges, combines lightweight construction with outstanding comfort.

 

 

How is the Skyracer recycled?

The SKYRACER is the world’s first carbon saddle that can be completely recycled.

The saddle consists of small single long-fiber carbon snippets, which are not held together as usual with epoxy resin, but by an aviation-approved thermoplastic material. For recycling, the connected carbon snippets are returned to their original state by means of “electrical fragmentation” (similar to a lightning strike). Afterwards, the carbon snippets loosened by the thermoplastic can be used again for the production of a new Skyracer.

That is not enough for us. This process is possible up to 5 times!! We guarantee a holistic recycling cycle.

Serial number/ seal sticker tune saddle

Our saddles are subjected to strict quality checks. Once the saddle has passed all the tests, it is marked with our seal. You can only be sure that you have an original tune saddle if it has a seal. If you have a saddle without a seal, it is either older than 2014 or it might be a copy.

 

 

 

 

Can I shorten the seatpost?

Yes, the Starke Stück can be shortend. However, we recommend that we have the cut carried out. Any modification of the product that has not been carried out by tune will lose all warranty claims.

The Schwarzes Stück cannot be shortened for safety reasons.

How much clamping area does my seatpost offer?

In our graphic you can quickly see how much room you have for your seatpost.

Full length Min. Extension length Max. Extension length
Leichtes Stück 340 mm 160 mm 250 mm
420 mm 240 mm 320 mm
Starkes Stück 340 mm 160 mm 250 mm
420 mm 230 m 320 mm

 

 

Schnellspanner

Why does my time trail skewer does not build up any tension?

Probably your dropouts are a bit to fin. In that case the quickrelease can not clamp the hub.
The dropouts need to have a minimum width of 7 mm.

Why there are no spiral springs delivered together with DC-quickreleases?

The springs can negatively influence the clamping force of the quickrelease.

What can I do if the clamping force of my quick release is too low?

As a rule the quickrelease is not strengthened sufficiently. It is necessary to use a higher operational force to close Tune quickreleases compared to other quickreleases.
Please close the quickrelease by screwing on the nut to the stop, close then the quickrelease and open it again and then tighten the nut once again. Please close the quickrelease and position the lever next to the frame or fork. Don´t be afraid to damage the quickrelease. Due to its construction, the quickrelease withstands the force.

What clamping methods does Tune offer?

Nearly all Tune hubs are suitable for quickrelease or thru-axle systems. At the time of purchase, you can choose the clamping method. Subsequently, a conversion with a conversion kit is easily possible.

Tune offers the following clamping methods:

Front:

• QR5: Quick release (100mm installation width)
• QR15: 15mm thru-axle (100mm mounting width)
• 20mm: 20mm thru axle (110mm mounting width), only for the dörte 20 and King MK hub

 

at the back:

• QR5: Quick release (135mm or 130mm mounting width)

• Maxle: 12mm thru-axle (135mm mounting width)

• X-12: 12mm thru-axle (142mm mounting width)

• X-12: 12mm thru-axle (150/ 157mm mounting width), only for the King MK hub

 

Here you will find an overview of the installation widths of the Fat hub.

What should I watch out for with the U20 Quickrelease? How tight can I clamp it?

Assembly

Close the Tune U20 quickrelease by inserting the nut into the dropout (front and rear are different) and tightening the lever. Turn the lever so far that you can barely close the eccentric. The lightweight construction of the insert nut does not allow readjustment. As a convenience option, normal nuts are included. Use these if the locknut cannot reach the desired lever position when tightened. The normal nuts shorten the free axis ends and allow a more comfortable positioning of the lever. (Note: The nuts have a M5.0 fine thread and are only compatible with Tunetensioners.) Do not be afraid of damage to the U20 quick release when tightened vigorously. By design, the quick release of the force withstands. After tightening, the quick release axle should protrude at least one thread from the end nut!

The “pan” in which the roller eccentric is mounted is painted with a dry lubricant. To avoid contamination and stiffness, disassemble the tensioner from time to time and clean the roller and pan with a dry, clean cloth. Do not grease!! Therefore, replace the cup if one day the torque becomes significantly higher to bring the closed lever in position.

 

Safety

The Tune U20 quick release is a high-tech product that requires attention during operation. The axle is made of carbon, which is extremely tear-resistant, but has weaknesses when worn. This means that the nuts or the axle threads must be clean and greased. We recommend a molybdenum disulphide containing grease (emergency running properties), by no means oil alone. This keeps the torque or rotational load low. The axes must be examined regularly. U20 quick releases with damaged axles must be replaced.

Are the Tune MTB quickreleases released for disc brakes and suspension forks?

Yes all Tune MTB quickreleases can be used with disc brakes and suspension forks.

Can quick-release axles be shortened if they’re too long?

Too long axles can be shortened, but then the warranty for the axle and nut thread expires. The guarantee for the tear resistance of the axle remains. If the thread is to be shortened, the end of the axle must then be deburred so that the nut can be easily screwed without scratching.

 

BEWARE the axles of U20 quick release eras must not be shortened!

Spanner

Why does my time trail skewer does not build up any tension?

Probably your dropouts are a bit to fin. In that case the quickrelease can not clamp the hub.
The dropouts need to have a minimum width of 7 mm.

Why there are no spiral springs delivered together with DC-quickreleases?

The springs can negatively influence the clamping force of the quickrelease.

What can I do if the clamping force of my quick release is too low?

As a rule the quickrelease is not strengthened sufficiently. It is necessary to use a higher operational force to close Tune quickreleases compared to other quickreleases.
Please close the quickrelease by screwing on the nut to the stop, close then the quickrelease and open it again and then tighten the nut once again. Please close the quickrelease and position the lever next to the frame or fork. Don´t be afraid to damage the quickrelease. Due to its construction, the quickrelease withstands the force.

What clamping methods does Tune offer?

Nearly all Tune hubs are suitable for quickrelease or thru-axle systems. At the time of purchase, you can choose the clamping method. Subsequently, a conversion with a conversion kit is easily possible.

Tune offers the following clamping methods:

Front:

• QR5: Quick release (100mm installation width)
• QR15: 15mm thru-axle (100mm mounting width)
• 20mm: 20mm thru axle (110mm mounting width), only for the dörte 20 and King MK hub

 

at the back:

• QR5: Quick release (135mm or 130mm mounting width)

• Maxle: 12mm thru-axle (135mm mounting width)

• X-12: 12mm thru-axle (142mm mounting width)

• X-12: 12mm thru-axle (150/ 157mm mounting width), only for the King MK hub

 

Here you will find an overview of the installation widths of the Fat hub.

Are the Tune MTB quickreleases released for disc brakes and suspension forks?

Yes all Tune MTB quickreleases can be used with disc brakes and suspension forks.

Can quick-release axles be shortened if they’re too long?

Too long axles can be shortened, but then the warranty for the axle and nut thread expires. The guarantee for the tear resistance of the axle remains. If the thread is to be shortened, the end of the axle must then be deburred so that the nut can be easily screwed without scratching.

 

BEWARE the axles of U20 quick release eras must not be shortened!

Steckachsen

What clamping methods does Tune offer?

Nearly all Tune hubs are suitable for quickrelease or thru-axle systems. At the time of purchase, you can choose the clamping method. Subsequently, a conversion with a conversion kit is easily possible.

Tune offers the following clamping methods:

Front:

• QR5: Quick release (100mm installation width)
• QR15: 15mm thru-axle (100mm mounting width)
• 20mm: 20mm thru axle (110mm mounting width), only for the dörte 20 and King MK hub

 

at the back:

• QR5: Quick release (135mm or 130mm mounting width)

• Maxle: 12mm thru-axle (135mm mounting width)

• X-12: 12mm thru-axle (142mm mounting width)

• X-12: 12mm thru-axle (150/ 157mm mounting width), only for the King MK hub

 

Here you will find an overview of the installation widths of the Fat hub.

Kurbeln + Zubehör

With which bottom bracket standards are the Tune SMART FOOT & BLACK FOOT crank sets compatible?

Our crank sets are compatible with most bike frames. We offer different bottom bracket sets which can be bought separately. A compatibility overview can be read in our product descriptions.

Are Tune chainrings 11-speed compatible?

Yes, all Tune chainrings are 11-speed compatible

How can the chain line be measured at the crank?

Measure the distance between the middle of the seat post and:
-middle of the chainring
-middle of the both chain rings (when using two)
-middle of the middle chain ring (when using three)

What is the correct axle length for a optimal chain line?

Road bike 2-speed: 105mm (43,5mm chain line)
MTB 3-speed: 117mm (50mm chain line)
MTB 2-speed: 110mm (49mm chain line)
!!!Those chain lines are not suitable for all frames as the chain rings might contact the frame!!!
Rohloff MTB: 113mm (54mm chain line)
Fully-MTB, 3-fach (z.B. Scott, Liteville): 120mm (52mm chain line)
The chain line might vary minimal as the crank can be clamped conical.

What is the Q-factor for FastFoot cranks?

This depends on the selected wavelength and the crank type (race bike or MTB). Road bike crank with 105mm spline: MTB crank with 117mm spline.

Tretlager

Is it possible to adjust a Tune bottom bracket to another bottom bracket cup width?

Yes, it is possible. Yes, it is possible. Together with the according distances which get mounted in the bottom bracket, the AC 38 (square bottom bracket) and the Sixpack (hexagon bottom bracket) can be rebuild. For BSA (1,37”x24) there are the following possibilities: 68mm; 68mm/E-Type; 73mm/E-Type. For a width of 73mm, the shaft should be at least 110mm, for 73mm/E-type at least 117mm. 110mm, for 73mm/E-Type min. 117mm.

Zubehör

Is it possible to ride the NoTubes ZTR Crest 29“ rim with Road/Cross tires?

Yes, it is allowed to ride the ZTR Crest 29” rim with the following widths and pressures:
1. min. Tire width: 28mm
2. Max. Tire pressure (with hose):
a. 5.5 bar at 32mm
b. 6.0 bar at 30mm

Can I mount a lupine piko lighting system on the PORTEUR?

Yes, it is possible. To attach the light is our gopra adapter, as well as the gopro adapter needed for lupine.

https://www.lupine.de/produkte/zubehoer/halterungen/adapter-f%C3%BCr-gopro

Which bicycle computers is the PORTEUR compatible with?

Our PORTEUR is compatible with all Garmin devices, as well as Sigma Rox 12.0. Other devices, such as Wahoo, have a different screw guide when the adapter, which preclude compatibility with our PORTEUR.

Is our PORTEUR compatible with other stems?

Yes, it is.
But please note that mounting the PORTEUR affects the static of the stem. So we can only guarantee a perfect function in combination with our stem “Geiles Teil 4.0 Oversize”.

Porteur Zeichnung

 

How do I attach the tune rim tape?

tune shows you how to attach a rim tape to your wheel.

Porteur by Tune: How do I install a GoPro adapter?

I have a Campagnolo cassette and i want to use the Linientreu.

All 1/4 “bits fit into the bitmaking. For Campagnolo you need an extra Torx T27. This one is available in every hardware store and can be used.

Can I use the PORTEUR to attach my navigation system over the stem?

Yes, it is possible. Technically, there is nothing against turning around the PORTEUR and attaching it to the two upper screws of the stem so that the GPS stands above it.

Are Tune bottles BPA-/phathalat-free and food-safe?

yes. Our drinking bottles are BPA- and phathalat-free and food-safe.

Can my drinking bottle be put in the dishwasher?

yes. Our drinking bottles are dishwasher safe.

They are also BPA- and phathalat-free and food-safe. However, no hot liquids should be filled in them.

Can I fill hot liquids into my tune drinking bottle?

no. We do not recommend filling hot liquids in our bottle.

Sonstiges

Where do I go in case of technical problems?

Please contact your bicycle dealer, who will be happy to help you competently.

At what torque should the carbon brake pads be tightened?

The Tune carbon brake pads should be tightened with 5 Nm.

absoluteBlack

How do I mount the small oval absoluteBLACK chain sheet on Ultegra 6800 or similar cranks?

How long does the warranty last?

AbsoluteBlack provides a guarantee for all products used under normal, non-abusive circumstances for all defects in material and workmanship over the lifetime. The warranty is valid from the date of purchase. It is the buyer’s responsibility to regularly inspect the product and thus assess a maintenance or replacement himself. The warranty does not include wear or produce that has been modified, neglected, inadequately maintained, mistreated or damaged in an accident. The warranty does not include damage caused by unclean assembly/repair, or damage of other origin (non-processing/material defects), lack of competence or experience of the user. AbsoluteBlack’s responsibility within the warranty is limited to the repair or replacement of products at absoluteBlack’s sole discretion.

How do I calculate the translation for oval chainrings?

Just like with round chainrings. Simply use the nominal size when calculating an oval chainring. This means that with an oval chainring with 32 teeth, one takes the nominal size 32Z. The reason for this is that the 32Z oval chainring has the same circumference as 32Z round chainring. We have optimized the contour, not the circumference – it remains the same. The tooth spacing remains at 12.7mm, so that the chain runs round. You can use any online calculator for the translation length of an oval.

Do I need a different chain for my oval chainring?

All common chains except Halflink chains are compatible with our oval chainrings. So all 6, 8, 9, 10, 11 and 12x chains are compatible. For a single speed we recommend the use of 8-fold chains for a longer shelf life.

Do I need a different chain circuit for an oval chainring?

No, you don’t need it. All common chain circuits work perfectly with oval chainrings. The movement of the switch cage is minimal and is located in the natural area.

What is the difference between WolfTooth, Oneup and absoluteBlack oval chainrings?

AbsoluteBlack took over 3 years to develop the oval chainring as we see it today. It was very difficult to bring the oval chainrings to the market, as the poor reputation of the unrounded chainrings of the Biopace era has resonated (a mistake by Shimano from the nineties). But the AbsoluteBlack chainrings quickly became hype. With such success, other companies such as WT and Oneup produced their own versions within a few months. However, all applications pending for the patent prevented copying of our ingenious design. Others are also developing contours similar to ours, but due to a lack of testing and optimization processes, companies will need years to complete them. At absolutBlack, we believe that we have designed the perfect oval chainrings and have thus secured our requirements. Any changes can have a negative impact on benefits. The claim that absoluteBlack makes is not comparable to the other oval chainrings on the market.

How do I choose the appropriate oval chainring size?

We always recommend to stick to the same chainring size. So if you currently have a chainring with 32 teeth, we recommend you stick to a chainring with 32 teeth. The same applies to switchable 2-fold card sheets on the road bike. We recommend buying oval chainrings that have the same number of teeth as your current round.

 

Why should I switch to oval chainrings?

By using oval chainrings, a much more uniform “round era” can be achieved compared to classic round chainrings.

If you use absolute BLACK OVAL chainrings, you will experience a calmer pedaling compared to round chainrings. You will also notice an improved traction level as the control of torque improves when using oval chainrings. With these features, you can climb steeper hills and better control your bike.

Why should I switch to oval chainrings?

By using oval chainrings, a much more uniform “round era” can be achieved compared to classic round chainrings.

By using an absoluteBLACK OVAL chainrings you will experience smoother pedaling compared round chainrings. So you will notice an enhanced level of traction, because the ability to control the torque improves when using oval chainrings. These features allow you to climb steeper hills and gain more control over your bike.

Why should i use oval chainrings on my road bike?

The use of oval chainrings on the road brings some significant efficiency benefits. Oval chainrings do not produce more power, but allow you to unfold your full potential. They enable this by optimizing the pedal force and reducing the force required on the mountain as well as increasing the speed. With oval chainrings, you can travel faster and more efficiently.

With the oval chainrings from absoluteBLACK is not only possible to achieve the “round kick” also help the chainrings in reducing or removing knee problems, which often arise in round chainrings.

AbsoluteBLACK has completely redesigned the shifting behavior of oval chainrings. The chainrings now offer an excellent, fast and precise shifting behavior, even under load.

 

<iframe width=”560″ height=”315″ src=”https://www.youtube.com/embed/Y0WaVstL28E” frameborder=”0″ allow=”autoplay; encrypted-media” allowfullscreen></iframe>

How do I set the derailleur to fit oval chainrings?

In order to optimally adjust the derailleur for oval chainrings, align the crank so that the crank arm points forward. Thus, the position of the large ovality is positioned exactly below the derailleur.

Now adjust the vertical distance between the tip of the chainring teeth of the large chainring and the derailleur. There should be about 1 mm of space here.

Now place the chain on the largest sprocket and the small chainring. Now reduce the distance between the inner sheet of the derailleur and the chain. There should be so much space that the chain just doesn’t grind at the derailleur. Note that when adjusting the circuit small changes make a big difference. So, in small steps, tap the perfect setting.

In the next step, the outer stop must be adjusted, for this purpose switch to the smallest sprocket and the large chainring. Now the derailleur must be adjusted so that there is exactly 2 mm space between the chain and the outer sheet of the derailleur.

If everything is set correctly, the circuit should switch quickly and cleanly.

The video below explains how the derailleur can be adjusted to fit oval absolute BLACK chainrings. The video refers to road bike chain sheets of all sizes except 46/30Z.

Troubleshooting:

* If the chain falls down from the large to the small chainring to the right when switching, then the outer stop has been set incorrectly. Probably the distance between the chain and the outer derailleur plate is too large. It may also be that the derailleur is not parallel to the chainring.

* If the chain does not climb easily from the small chainring to the large, it can have two causes. Either the gap between chain and derailleur plate is when the chain on the small sprocket and the large chainring is smaller than 2 mm or the derailleur is not parallel to the chainrings.

How do I set the derailleur to fit oval chainrings?

In order to optimally adjust the derailleur for oval chainrings, align the crank so that the crank arm points forward. Thus, the position of the large ovality is positioned exactly below the derailleur.

Now adjust the vertical distance between the tip of the chainring teeth of the large chainring and the derailleur. There should be about 1 mm of space here.

Now place the chain on the largest sprocket and the small chainring. Now reduce the distance between the inner sheet of the derailleur and the chain. There should be so much space that the chain just doesn’t grind at the derailleur. Note that when adjusting the circuit small changes make a big difference. So, in small steps, tap the perfect setting.

In the next step, the outer stop must be adjusted, for this purpose switch to the smallest sprocket and the large chainring. Now the derailleur must be adjusted so that there is exactly 2 mm space between the chain and the outer sheet of the derailleur.

If everything is set correctly, the circuit should switch quickly and cleanly.


 

The video below explains how the derailleur can be adjusted to fit oval absolute BLACK chainrings. The video refers to road bike chain sheets of all sizes except 46/30Z.

Troubleshooting:

* If the chain falls down from the large to the small chainring to the right when switching, then the outer stop has been set incorrectly. Probably the distance between the chain and the outer derailleur plate is too large. It may also be that the derailleur is not parallel to the chainring.

* If the chain does not climb easily from the small chainring to the large, it can have two causes. Either the gap between chain and derailleur plate is when the chain on the small sprocket and the large chainring is smaller than 2 mm or the derailleur is not parallel to the chainrings.

 

How do I choose the appropriate oval chainring size?

We always recommend to stick to the same chainring size. So if you currently have a chainring with 32 teeth, we recommend you to stick with one with 32 teeth. The same applies to switchable 2-fold card sheets on the road bike. We recommend buying oval chainrings that have the same number of teeth as your current round.

 

Why absoluteBLACK chainrings are not Biopace?

Biopace was a system developed by Shimano in the 90s to enhance the power delivery to mountainbikers on difficult terrine. It was intended to optimize the power transmission of the mountain biker on uneven terrain. Due to numerous complaints from riders with knee pain and other difficulties like an inability to really generate smooth pedaling Shimano stopped the production and came back to round chainrings.

How are absoluteBlack and its oval chainrings different from Biopace? First of all, Biopace chainrings were not oval, absoluteBlack chainrings are oval. The timing of oval chainrings is the position of the oval in relation to the crank arm. This timing is what creates the real benefit of oval chainrings. Back in the 90s, Shimano did not find the correct timing and instead of improving the power delivery Biopace did the opposite. absoluteBLACK has precisely optimized and tested the timing over many years, now the chainrings offer an undenyable advantage to the biker.

Why aren’t absoluteBLACK chainrings Biopace?

Biopace was a system developed by Shimano in the 90s to enhance the power delivery to mountainbikers on difficult terrine. It was intended to optimize the power transmission of the mountain biker on uneven terrain. Due to numerous complaints from riders with knee pain and other difficulties like an inability to really generate smooth pedaling Shimano stopped the production and came back to round chainrings.

How do the absoluteBLACK differ from the Biopace chainrings? First of all, Biopace chainrings were not oval. The absoluteBLACK chainrings are. The most important factor is timing. The timing indicates the position of the oval to the position of the crank arm. This timing is what creates the real benefit of oval chainrings. For Shimano in the 1990s, the timing was wrong. As a result, it had a negative effect on the driver. absoluteBLACK has optimized and tested the timing with the greatest precision over the years. Finally, the chainrings offer drivers what they promise.

Why should i use oval chainrings on my road bike?

The use of oval chainrings on the road brings some significant efficiency benefits. Oval chainrings do not produce more power, but allow you to unfold your full potential. They enable this by optimizing the pedal force and reducing the force required on the mountain as well as increasing the speed. With oval chainrings, you can travel faster and more efficiently.

With the oval chainrings from absoluteBLACK is not only possible to achieve the “round kick” also help the chainrings in reducing or removing knee problems, which often arise in round chainrings.

AbsoluteBLACK has completely redesigned the shifting behavior of oval chainrings. The chainrings now offer an excellent, fast and precise shifting behavior, even under load.