Shimano 105 CS-R7100 series 12-speed cassettes bring versatility to any rider or road. From sprinting on the flats to climbing steep inclines, these 11-34t cassettes have you covered.Features-Refined 12-step gear combination provides peak efficiency and accelerating performance for every situation-Compatible with new 12-speed and road 11-speed freehub bodies-Compatible with HG 12-speed chainItem Specifications-Color:Silver-Range:11-34-Cassette Cogs:11-12-13-14-15-17-19-21-24-27-30-34-Cassette Body Type:Shimano/ 11 Speed Road-Drivetrain Speeds:12-Weight:361-Defined Color:Silver