Shimano Ultegra CS-R8101 R8100 Hyperglide+ Cassette 12-Speed 30T 34T

Upgrade your drivetrain with the smooth, precise shifting performance of the Shimano Ultegra CS-R8101 12-speed cassette. Designed for Shimano’s latest 12-speed road groupsets, this cassette delivers fast, seamless gear transitions and optimized efficiency for both competitive riders and serious enthusiasts.

Built with Shimano’s advanced Hyperglide+ technology, the CS-R8101 ensures smooth shifting under load and consistent pedaling performance across all gears. The carefully engineered tooth profiles provide improved chain engagement and enhanced durability for long-term use.

• Model: CS-R8101

• Series: Shimano Ultegra R8100

• Speed: 12-Speed

• Hyperglide+ technology for smooth, fast shifting

• Compatible with Shimano 12-speed road drivetrains

• Lightweight and durable construction

• Designed for HG L2 12-speed road freehub bodies

Perfect for road racing, training, and performance riding.

These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.