Shimano XTR 12-Speed Cassette 10-51

The Shimano XTR 12V 10-51 cassette is a 12-speed cassette for riders looking for a wide range, with twelve gears from 10 to 51 teeth. The largest sprocket, with 51 teeth, makes steep climbs easier, while the smaller sprockets, from 10 to 14 teeth, help maintain speed on the flat and downhill.

The full range is 10-12-14-16-18-21-24-28-33-39-45-51 teeth, and the cassette weighs 367 g. It is compatible with the Micro Spline mounting standard: the manufacturer specifies fitting it to a Micro Spline freehub body, so check your hub before ordering. If your bike has a 12-speed drivetrain with this mounting standard, it is a suitable option for widening the gear range.

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.