Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver Front Chainwheel ## Key Features

## Key Features

Head circumference in CM : S 52 - 56

Utilizing the same Exogram technology found in SRAM RED crankarms

Science-Driven Hydration

Its orange Hi-Vis panels give you extra visibility for practicing open water swimming

Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver Front Chainwheel ## Key FeaturesThe Shimano Ultegra CS R8101 Cassette is engineered for high performance cycling, featuring a precise 12 speed configuration with a gear ratio of 11 30t. This wide range allows for optimized gear selection, offering a seamless transition between high speed flats and challenging climbs. Key Features: 12 Speed Compatibility: Designed for the latest 12 speed Shimano groupsets, ensuring smooth and reliable shifting performance. Gear Ratio: With a range