Shimano's Deore XT groupset has long been recognised as an exceptionally high performer. For 2012, the group continues to evolve to meet the changing demands of the latest bike designs and riding styles, and long may it continue! The Shimano Deore XT shifters are Dyna-Sys 10 speed shifters which feature Vivid indexing, Multi and 2-Way release to deliver more performance than you ever thought possible. Light to the touch, the Vivid Indexing ensures positive, crisp shifts by making sure there's a constant amount of shift lever force across all the ten sprockets. Making smooth shifting incredibly ease, the Multi Release that these Shimano shifters boast means that you can change multiple gears with one fell swoop, making shifting super quick, while the 2-Way release design means that the upper level still performs the same shift function but it can now swing in either direction allowing it to be released by the thumb or index finger. These nifty gear shifters feature a one piece lower alloy thumb release lever to increase their durability as well as deliver sharp, precise shifts. The multi-bearing design uses two ball bearing units so you get low-friction and reliable shifting action. Some nice little touches on these MTB shifters include the raised optical gear display so you can instantly tell what gear you're in, while the multi position adjustable handlebar clamp delivers custom lever positioning to where's most comfortable and convenient for you! Features Dyna-Sys 10-speed shifters with Vivid indexing and Multi and 2-Way release to exceed the demands of ever changing bicycle designs and riding styles Light to the touch but positive and crisp, Vivid indexing provides a constant amount of shift lever force across all 10 sprockets 2-Way release: the upper lever still performs the same shift function, but it can now swing in either direction allowing it to be released by the thumb or index finger Multi Release allows multiple gear changes from both levers with one sweep, further adding to the speed of shift Multi-bearing design uses two ball bearing units to provide a low-friction and reliable shifting action One piece lower alloy thumb release lever increases durability and gives sharp precise shifts For use with Dyna-Sys 10-speed only Raised optical gear display instantly shows you what gear you're in and allows clearance for suspension lock out clamps below Multi-position adjustable handlebar clamp for custom lever positioning Can be adapted using ISpec mounts to fit directly to XT M785 brake levers Average weight 255 grams "