Shimano Ultegra CS-6800 11 Speed Cassette
The Ultegra 6800 11 speed cassette is the new offering from Shimano enabling you to use wider ratios. The lightweight HG-EV cassette has rigid alloy sprocket carrier for reduced weight and better shifting performance, even under demanding gear changes.
For use with HG-EV chains
Rigid alloy sprocket carrier
Improved teeth shaping providing accurate shifting and reduced wear