Shimano Dura-Ace CS-R9100 11-Speed Cassette 11T Alloy, Lightweight Performance Bar Clamp Diameter (mm)_35.0mm Integrated standlight technology maintains visibility

Integrated standlight technology maintains visibility when stationary

and hassle-free outdoor meals

- Lightweight at only 41 grams for minimal rotational mass

ground to a mirror finish after Magnetite and cryogenic treatments-delivering unparalleled hardness

Shimano Dura-Ace CS-R9100 11-Speed Cassette 11T Alloy, Lightweight Performance Bar Clamp Diameter (mm)_35.0mm Integrated standlight technology maintains visibilityElevate your cycling performance with the Shimano Dura Ace CS R9100 11 Speed 11t First Position Cassette Cog, the ultimate choice for professional racers and serious enthusiasts. Crafted with precision engineering and top tier materials, this high performance cassette cog is designed to deliver seamless gear transitions, exceptional durability, and optimized weight for competitive cycling. Materials & Construction: Constructed from high strength