Shimano Ultegra CS-R8101-12 cassette delivers smooth, precise 12-speed shifting for modern road bike drivetrains. The 11-30T range balances high-speed efficiency with confident climbing capability.
The Shimano Ultegra CS-R8101-12 cassette is designed for riders seeking high-performance 12-speed road gearing with smooth, reliable shifting. Built to complement Shimano Ultegra R8100 drivetrains, it offers efficient power transfer and consistent performance for racing and endurance rides.
The 11-30T configuration provides a versatile gear range, delivering tight gear steps for speed on flat terrain while offering lower ratios for sustained climbs. Precision-machined sprockets ensure fast, quiet, and accurate shifts under load.
Ideal for performance-focused road cyclists upgrading to Shimano’s 12-speed platform, the Ultegra CS-R8101 cassette delivers race-ready efficiency with refined shifting precision.
