Shimano Ultegra CS-R8101 12-Speed Cassette PL-Apparel Multiple Lighting Modes – Adjustable

Multiple Lighting Modes – Adjustable brightness and flash options support both daytime visibility and night riding

This cutting-edge technology ensures that gear changes are precise and instantaneous

SS: OEM hose kit compatible with Deore BR-M615 disc brakes

Durable & Efficient Construction - Provides dependable performance and long-lasting wear resistance for everyday riding

water protection

Shimano Ultegra CS-R8101 12-Speed Cassette PL-Apparel Multiple Lighting Modes – AdjustableThe Shimano Ultegra CS R8101 12 Speed Cassette ensures a smooth, uninterrupted shifting experience, whether you're climbing, sprinting, or cruising. Its larger driving cogs enhance drivetrain efficiency and offer compatibility with both Shimano 11 and 12 speed freehub bodies. Thanks to Shimano's HYPERGLIDE+ technology, you can expect seamless shifts across the entire gear range, whether shifting up or down. The refined 12 speed gear combination