After three decades of creating MTB drivetrain, Shimano have firmly established themselves as one of the market leaders in the mountain bike industry, producing top-quality, performance-orientated and innovative components at affordable prices. The latest line for Shimano uses Dyna-Sys technology to form a stable drivetrain which even the roughest, rockiest, muddiest trails can't shake. The Deore XT and the SLX are Shimano's two best sellers in the MTB group, so they have taken these two sets, upgraded them with Dyna-Sys technology and created a 10-speed set-up to meet the demands of modern riders and ever-changing riding styles. The Shimano Deore XT M771 MTB cassette is a high-performance cassette which is available in three gear combinations 11-32, 11-34 or 11-36 teeth. This Shimano cassette allows for smooth shifting, even under load and is visually the same as the Deore XT 9-speed cassette but uses the new Dyna-Sys technology for optimum performance. When upgrading your bike cassette, it is advisable to also upgrade the chain to preserve the life of your cassette, the Shimano HG94 10-speed chain is an ideal choice. Features High performance 10-speed cassette Gear Combinations : 32/34/36 Two spiders with 3 sprockets each Alloy lock ring "