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Trek Knock Block 62-Degree Headset Assembly with Display Chip

Model 5252158

Get your bike back on the trail with the headset parts you need.

Product details

Trek proprietary headset components compatible with Trek Knock Block models
62-degree headset fits 2020 & 2021 Supercaliber and 2021 Procaliber
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

Manufacturer part #	141-0011000012
Steerer outer diameter	28.6mm (1-1/8")
Crown race inner diameter	39.8mm
Cup Insertion OD	Integrated
Stack height	8.7mm
Bearing type	Sealed
Headset type upper	Unthreaded fully integrated
Headset type lower	Fully integrated
Material	Aluminum

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Weights are based off pre-production products at time of publication. Weights may vary in final production.