SRAM RED XG-1290 12-Speed Rainbow Cassette Sprocket Brand_Cyclonus and makes sure you stand

and makes sure you stand out with the power of Daytime Hyperflash™ mode

Integrated cage increases stability and control when not clipped in and protects binding mechanism against impacts

you just need to turn the aluminium outer

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

SRAM RED XG-1290 12-Speed Rainbow Cassette Sprocket Brand_Cyclonus and makes sure you standRED 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