Shimano Ultegra CS-R8000 11-Speed Cassette 14-28

Lightweight 11-speed HG-EV cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes. Hyperglide EV sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear. Wide gear range to meet the demands of all types of rider. For use with 11-speed HG-EV chains.