Shimano XT 10 Speed Cassette CS-M771
The Shimano XT M771 Dyna-Sys 10 speed cassette features a refined tooth profile for compatibility with the HG-X 10-speed chain. It has two sets of three cogs fixed to an alloy carrier for lighter weight and four loose cogs. The Hyperglide tooth profile provides fast and smooth shifting Shimano Cassettes are known for. An alloy lockring is included.