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Headsets
$63.99
Service and replacement parts specifically for Trek Knock Block technology.
Genuine replacement parts
Get your bike back on the trail with the headset parts you need.
- Trek proprietary headset components compatible with Trek Knock Block models
- 72-degree headset fits 2021 Slash 29
- Includes crown race, bearings, top cover, frame chip & fastener
- Frame chip has display tabs to connect Bosch Kiox Mount sold separately
- Must be paired with Knock Block stem and Knock Block spacers
- Knock Block headset spacers not included
$39.99
- Steerer outer diameter: 28.6mm (1-1/8")
- Crown race inner diameter: 30mm
- Cup Insertion OD: Integrated
- Stack height: 15.7mm
- Bearing Type: Sealed
- Headset type upper: Unthreaded fully integrated
- Headset type lower: Fully integrated
- Material: Aluminum
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