Sly heads with tapered forks drive BUBI

79 gramm


Excellent load bearing capacity. Despite its low weight of delicate 75.0g, the strong BUBI has everything a tax rate needs.

What do we expect of a headset? That it works and works until you finally forget about it.

Nobody is interested in the details of our precision fit, nor the quality of our ball bearings, despite the fact they’re both class leading.

And don’t worry about whether the Gum Gum’s startnut system is carbon steerer friendly, it is. Sometimes, we all need a reliable bore.


Reduzierung Bubi auf 1.18_DF018944


Adapter for conversion from 1,5″ Tapered to 1 1/8″ is available separately.

OurAhead-Cap and the GumGum expander are included.



Specs Bubi

construction semi integrated
head tube 1 1/8”
head tube diameter 44mm / 55mm or 56mm
S.H.I.S. number ZS44/28.6; bottom ZS55/40 or ZS 56/40
build height 8.9 mm
cup material aluminium 7075
material top cap carbon
bearings 2 angular-contact ball bearings
clamping Gum Gum
manufacturing process CNC milled/turned
Weight 79 g
Road 100
Marathon 100
XC 100
AllMountain 100
Enduro 100
Downhill 70

Bubi from Tune: The clamping in the steerer is TUNE-typical clever and through the clamping device "GumGum" with silicone ring full of carbon-fiber-compatible.