SRAM RED XG-1290 12-Speed Rainbow Cassette Sprocket Brand_Cyclonus HR60 supports connecting with iGPSPORT

HR60 supports connecting with iGPSPORT bike computers or smart phone to sync real time heart rate data for analyzing training data

360-0014011360 CH CHAIN K-FORCE MTB 126 links 12s CN-1201

you just need to turn the aluminium outer

This groupset is compatible with any HG freehub

SRAM RED XG-1290 12-Speed Rainbow Cassette Sprocket Brand_Cyclonus HR60 supports connecting with iGPSPORTRED XG 1290 Cassette The workhorse of X Range gearing. The SRAM RED XG 1290 cassette progresses fluidly and quickly through a wider range of gears. It's specifically designed for wireless electronic shifting and the one piece design offers you the best in weight savings. FEATURES Designed for smooth and fast shifting Gradual gear progression between cogsat least five one tooth jumpswhile still offering a wider range 10 tooth start helps provide a