Headsets

For proper assembly. GENUINE REPLACEMENT PARTS Get back on the road with a genuine replacement headset. PRODUCT DETAILS - Explanation on the S.H.I.S. Can be found here: http://bicycleheadsets.com/ - Semi integrated threaded headset

- 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

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