TheSRAM Force22 11 Speed Rear Derailleur offers simply outstanding levels of shifting capability, featuring the latest in SRAM Technologies the Derailleur provides the fastest and quietest shifting action available on the market! The Exact Actuation™ technology on the Force 22 Derailleur gives a super accurate and efficient way of shifting through the gear range, which to be noted is extremely extended for a gear range in this price range! With several refinements being made throughout the SRAM Force 22 11 Speed Rear Derailleur including the tooth geometry of the jockey wheel, all of this results in the chain being run a lot smoother and quieter while still staying incredibly light-weight for a Rear Derailleur of this stature! SRAM Force22 11 Speed Rear Derailleur Features Exact Actuation™ shifting provides fast, accurate shifts More clearance with 28t cassettes thanks to a longer B-knuckle New silent shifting with optimized Aeroglide Pulleys™ Newspring-fixed barrel adjuster New chain pulley cage adds precise chain management