In any gear, ULTEGRA R8150 drivetrains maximize efficiency thanks to larger sprockets while maintaining compatibility with existing HYPERGLIDE rear hub bodies. All this increasing to 12 gears, the ULTEGRA CS-R8100 cassettes are the new paradigm in road shifting.
- Refined 12-step gear combination provides maximum efficiency and acceleration performance for every racing situation
- Faster, smoother shifting with maximum pedaling force
- Compatible with new 12 speed and 11 speed road rear hub body
