New SLX, Tough, Aggressive and Light, for a modern mountain bike group. Deore LX, has been functionally re-designed into two groups: New SLX for MTB and new Deore LX for Trekking.

The XT advantage - exclusive technology means exclusive performance. From composite chainrings to multi-layer disc brake rotors, Shimano's innovation is your advantage. The low profile shadow rear derailer and the latest generation RapidFire Plus shifters adapt to both rider and trail leaving you in focus and in control. Our servo Wave brake levers provide the power you need without sacrificing the pad clearance or lever stroke you want. Race and Trail drivetrain options turn your energy into rhythm and motion and the incomparable SPD pedal is yet again improved by increasing contact area and with it power transfer and control. Make the XT advantage your advantage.

Shimano has been making mountain bike drivetrains for more than three decades, including, eight generations of Shimano Deore XT, the original off-road drivetrain, and six generations of its flagship XTR group. Each generation is a reflection of the riding that defined the sport and the technology that defined the era. True to this legacy, our next-generation Dyna-Sys drivetrain brings with it the legendary quality, durability and performance Shimano is known for, all packaged to meet the ever-evolving demands of today’s riders.

Through Dynamic Systems Engineering, Dyna-Sys brings together the rider, the bike and the trail. Intuitive gear combinations account for how riders deliver power through the drivetrain; optimization around the 32-tooth Primary Driving Gear lets riders get the most out of modern suspension designs, and even the roughest, rockiest, muddiest trails can’t shake Shimano’s most stable off-road drivetrain to date.

Dyna-Sys is more than another batch of iterative improvements—it is a comprehensive redesign made up of a multitude of thoughtful details, features and revisions that together add up to more than the sum of their parts.

If you expect every bit as much out of your equipment as you invest in your training, then you’re in the right place. The new XTR Race group doesn’t just ask to be pushed at race pace, it demands it.

Shimano’s first-ever off-road double-ring crank rewards those who ride with a sense of urgency. XTR Race’s sub-1,500-gram tubeless wheels spin quickly up to speed while stronger, leaner pedals offer greater efficiency and more control than ever.

And forget the notion that a cross-country race brake needs to mean skittish, on-the-edge-of-control performance, because the new XTR Race brake supplies surgically apportioned stopping power while still shedding 40 grams over its predecessor.

Want to race on a triple or boost your brake power even further? Don’t be afraid to personally tune your ride with components from the XTR Trail catalog of cross-compatible options.

Race Drive Train Systems

This new thoroughbred kit is starts with Shimano's first-ever off-road two-ring race crank, which comes in carefully calculated CloseStep gear combinations to match riders' individual style, terrain, and horsepower. With 38-, 40- and 42-tooth Primary Driving Gear choices—not to mention an optional, Herculean 44-tooth ring intended for pros only—the only factor limiting how fast you can go is how much power you can produce.

And despite weighing in under 700 grams, this purpose-built race crank maintains all the pipe billet steel-axle strength and cold-forged Duraluminum durability that XTR cranks are famous for. Shimano has also parlayed its already best-in-class front shifting into the two-ring crank game with a new short-cage, double-ring-specific front derailleur that seamlessly shifts an off-road-specific 10-speed XTR chain.

Complementing those race-day shifts up front, the new Dyna-Sys 10-speed rear derailleur/shifter combination provides smooth, consistent actuation and remarkable stability through rutted washboard racecourses.

It all adds up to mindlessly fast shifting, and gives racers fewer excuses for losing and even more ways to win. It’s not for everyone, but for those up to the challenge, XTR Race delivers like never before.