Trek Knock Block 58-degree Headset Assembly

Trek proprietary headset components are compatible with Trek Knock Block models.

Service and replacement parts specifically for Trek Knock Block Technology.

PRODUCT DETAILS
- Compatible with all Trek Knock Block models
- Includes crown race, bearings, top cover, frame chip & fastener
- Must be paired with Knock Block stem and Knock Block spacers
- Knock Block headset spacers not included