Wolf Tooth Headset Upper Knock Block - 28.6 8mm Red CheckoutSpec= 130 BCD Front Axle Type 15mm Thru

Front Axle Type 15mm Thru

Shorter insertion length to fit more bikes

Combination uses a three-digit code

Tool-Free adjustments are ergonomically designed to be easily accessible and adjustable trail-side - giving riders the power of a pro-tune at their fingertips

Wolf Tooth Headset Upper Knock Block - 28.6 8mm Red CheckoutSpec= 130 BCD Front Axle Type 15mm ThruWolf Tooth Headset Upper Knock Block 28. 6 8mm Red. Wolf 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 Treks Knock Block system The top cap on these headsets have unique