Pack of 2 Wolf Tooth Precision Headset Spacers for Trek Knock Block 10mm Nickel | eBay
Anyone give me any ideas how to sit this headset??? I tried to fit a knock block adapter so I could use a shorter stem and I've had a nightmare, I managed
Trek Knock Block (with Cam McCaul!) - YouTube
Alternatives for trek Knock Block adapter - Pinkbike Forum