Shimano Ultegra HG800 11 Speed Cassette

Lightweight 11-speed HG-EV cassette with rigid alloy sprocket carrier for better-shifting performance, even under the most demanding gear changes. The Alloy sprocket carrier is also designed to deliver a lighter-weight cassette. Key Features: Hyperglide EV sprockets have been designed with improved teeth shaping providing accurate shifting and reduced wear Hyperglide EV sprockets make the cassette even lighter Wide gear range to meet the demands of all types of rider Can be used on narrower MTB freehubs when used without a spacer For use with 11-speed HG-EV chains