Innovative engineering and cutting-edge technology come together to create the KMC React 10 speed cassette. A culmination of years of research and development, this highly efficient drive system boasts an impressive 10-pitch gear ratio for unparalleled acceleration and top-end performance.

With a 11/42T tooth profile, you can expect smooth and consistent power delivery, while also maximizing your bike's overall efficiency. The React 10 speed cassette is specifically designed to work seamlessly with the KMC inner hub technology, ensuring reliable and precise engagement of gears.

Whether you're tackling challenging climbs or pushing yourself on a long ride, the React 10 speed cassette has got you covered. Its compact design makes it ideal for smaller wheels, while also providing ample power output even at high speeds. Whether you're an elite athlete or simply looking to upgrade your bike, the KMC React 10 speed cassette is sure to impress.

Experience the thrill of faster, more efficient pedaling with this powerful and reliable drive system from KMC.