Wolf Tooth Headset Upper Knock Block - 28.6, 8mm, Blue Axle Pegs UPC: 884603178393

UPC: 884603178393

- Not compatible with Campagnolo/Fulcrum Ultra Torque/Racing Torque cranksets

Cannondale One graphic adds a subtle touch of detail

UPC: 022255475662

Wolf Tooth Headset Upper Knock Block - 28.6, 8mm, Blue Axle Pegs UPC: 884603178393Wolf Tooth Precision Headsets for Trek Knock Block are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These upper headsets are for Trek frames with molded in internal bearing cups. Designed to work with Trek's Knock Block system The top cap on these headsets have unique raised features that key to Knock Block compatible stems