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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
A confident connection
By blending advanced wax and polymer technology
ISIS crankarm spindle interface
The waterproof Xnetic H2O Socks can be worn with nearly any cycling shoe
FDA-approved materials free from BPAs and phthalates
Trek Knock Block Headset Assembly with Display Chip eb12_900_00c A confident connectionTrek proprietary headset components compatible with Trek Knock Block models 58 degree headset fits all 2017 2020 Knock Block equipped models 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