Enhance your ride
Even during maximal efforts up a climb or racing, riders no longer need to back off to shift. In any gear, Ultegra R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing Hyperglide freehub bodies. All this while increasing to 12-gears, Ultegra R8100 Bicycle Cassette are the new paradigm in road shifting.
- Compatible with new 12-speed Shimano freehub body and road 11-speed freehub body
- Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation
- Larger driving cogs maximize drivetrain efficiency
- Steel cogs with aluminum spider arm
- Includes aluminum cassette lockring