Shimano Ultegra CS-R8101 / R8100 12 Speed Cassette Size:11-30 Soothes already chafed or irritated

Soothes already chafed or irritated skin

Includes stainless steel screws

the Pirelli P7 Sport Clincher Tyre offers a rare combination of grip

Built-in battery for Shimano Di2 groupsets

Shimano Ultegra CS-R8101 / R8100 12 Speed Cassette Size:11-30 Soothes already chafed or irritatedThe uninterrupted shifting experience of the ULTEGRA R8101 12 speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed FREEHUB bodies. Take your road bike performance to the next level with the Shimano Ultegra CS R8100 12 Speed Cassette. Designed for Shimanos latest generation 12 speed road