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

This groupset is compatible with any HG freehub

your data is easy to see with ELEMNT BOLT’s Ambient Light Sensor

the SHIMANO GRX BR-RX400 hydraulic disc brakes provide greater control for mixed terrain riding

you just need to turn the aluminium outer

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