PRO Headset expander with integrated battery mount for BTDN110 for Tharsis stems

Race Face Aluminium Headset Spacer Kit

Race Face Carbon Headset Spacer Kit

Trek Knock Block 62-Degree Headset Upper Assembly with Display Chip

Genuine replacement parts 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 bearing 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

ODI Alloy Headset Topcap