SHIMANO 12-speed Cassette 11-30 CS-R8101 Ultegra / N/A

・The optimized combination of 12 gears guarantees maximum efficiency and acceleration in every racing situation ・Faster, smoother shifting under maximum pedaling force ・Compatible with new 12-speed and 11-speed road rear hubs Product description HYPERGLIDE+ cassettes revolutionized shifting off-road, guaranteeing reliable operation in both directions. Now it is time for a technology that will transform road cycling. Cyclists can shift even under maximum load on climbs or while racing with friends, without interrupting pedaling. Shimano ULTEGRA R8150 drivetrains with larger sprockets ensure maximum efficiency in every gear and are also compatible with the HYPERGLIDE rear hubs currently available. The 12-speed ULTEGRA CS-R8100 cassettes set new standards for shifting on road bikes.