Ritchey WCS Semi Integrated Upper ZS Headset: ZS44/28.6 - 15MM STA

Designed for bicycles with semi-integrated headsets, the WCS Semi-Integrated ZS Upper Headset features full complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease and corrosion-resistant Ti-coated bearings.

Material: alloy
Stack height: 10.1, 15.2mm
Headtube ID: 44mm
S.H.I.S.: ZS44/28.6 (1 ?”)
ZS44/28.6 (1 ?”) bearing: 41.0/30.15/7mm 45°/45° - sealed cartridge (ACB) – titanium coated
Top cap included
Weight: 43g
Colour: black