Shimano Ultegra 6700 10 Speed Cassette

This is a lightweight, 10 speed cassette, with sprocket sets in the range of 11-23, 11-25, 11-28, 12-23 and 12-25 tooth, to meet the demands of all types of riders.
It has Hyperglide sprockets, that have been designed to reduce weight with improve teeth shaping to provide more accurate shifting and reduced wear.
It also has a rigid alloy carrier for reduced weight and better shifting performance, even under the most demanding gear changes. .