Shimano CS-HG51-8 Hyperglide 8-speed cassette with an 11-32T gear range. Designed for compatible HG freehub bodies and 8-speed drivetrains, offering reliable shifting for hybrid, mountain and recreational bikes.
Shimano Alivio CS-HG51-8 Hyperglide 8-speed cassette with an 11-28T gear range. Designed for compatible HG freehub bodies and 8-speed drivetrains, with closely spaced ratios for smooth shifting.