Shimano CS-M771 XT 10-speed cassette 11 - 34T

New for 2010, Shimano's new Dyna-sys 10-speed integrated design. The XT 10-speed Cassette: Silver finish available in 11-32T or 11-34T or 11-36T Made up of 6 cogs mounted on alloy spiders. Revised tooth profiles to work with the new HG-X 10-speed chains. The new XT 10sp groupset gives: Reduced chain tension Improved suspension performance and potential for better suspension design Maintains rider momentum better with better shifting ratios resulting in a smoother shift and better cadence recovery. A very intuituve shifting system Lighter shifting- reduced force required to shift a gear. Only compatible with other Shimano 10 speed groupset components.