Shimano XTR CS-M9100

Whether for drives with two chainrings or just one, the M9100 leads the way in range. The combination of a 10-45T cassette and 38/28T crank offers an incredible spectrum of 612%. The new Micro Spline tooth profile with the freehub body allows for a 10T as the smallest sprocket and also prevents the cassette from digging into the freehub body. The large sprockets are mounted on a carrier, optimizing weight and power transfer.

The new XTR continues 27 years of MTB innovation with even more speed, focus, and control. Want to push the limits on today’s extremely demanding courses? The new XTR is packed with the technological edge you need. It will inspire you to get the most out of yourself. Shimano has worked incredibly hard since they introduced the very first MTB group 27 years ago. The XTR is compelling proof of that. With its completely new design, it is by far the most advanced MTB group on the market. It is lighter, more comfortable, more robust, and more versatile. At the same time, it converts the rider's power into forward momentum with extreme efficiency.