KMC REACT Cassette - 11-Speed, 11-42t, HG Driver Compatible, Black

The KMC REACT 11-speed 11-42t cassette delivers a balanced gear progression tailored for dependable shifting and broad terrain capability. Built with an all-black finish from high-strength steel, this cassette mounts onto standard Shimano HG freehub bodies to provide lasting durability across tough rides.

Engineered specifically to synchronize with KMC drivetrains, the cogs feature specialized ascent and descent ramps. These profiles smoothly lift the chain during upshifts and swiftly catch it during downshifts, minimizing friction, boosting overall drivetrain stability, and extending component life.

• Speeds: 11-speed
• Gear range: 11-42t (11-13-15-17-19-21-24-28-32-36-42)
• Driver compatibility: Shimano HG
• Optimized chains: KMC e11, X11, X11 EL, and X11 SL
• Material: High-strength steel
• Color: Black