Trail, enduro and all-mountain riders on a 1x12 mountain bike with a MICRO SPLINE freehub who want one cassette that climbs anything and still has a fast top gear.
This is the Deore XT CS-M8200-12 in the 10-51T spread, a 510% range across twelve sprockets: 10-12-14-16-18-21-24-28-33-39-45-51T. It is built around Shimano's evolved HYPERGLIDE+ shifting, with new tooth profiles aimed at smooth, fast and durable shifts under high load.
Ten steel sprockets and two anodised aluminium ones balance wear life and weight, for an average of 463 g. It fits a MICRO SPLINE freehub body, not a standard HG one, and runs with a 12-speed HG chain.
510% range
A 10T top gear and a 51T climbing gear in one cassette.
HYPERGLIDE+ shifting
Tooth profiles shaped for smooth, fast shifts under high load.
Steel and aluminium sprockets
Ten steel and two aluminium sprockets on a painted aluminium spider, for an average weight of 463 g.
MICRO SPLINE fit
Made for MICRO SPLINE freehub bodies, which allow the 10T smallest sprocket.
Cassette
Fit and build
HYPERGLIDE+
Shimano's shifting technology for 12-speed mountain bike cassettes. Tooth profiles are shaped for smooth, fast shifts under high load.
MICRO SPLINE
Shimano's freehub standard that allows a 10T smallest sprocket on a 12-speed cassette. It needs a MICRO SPLINE freehub body.
Great for
Maybe not for
This is the 10-51T. Shimano also makes the M8200 as a 9-45T. It needs a MICRO SPLINE freehub body, a 12-speed HG chain and a 12-speed rear derailleur rated for a 51T largest sprocket. Check your derailleur in Shimano's compatibility chart.
Freehub first
Confirm your wheel has a MICRO SPLINE freehub body before you buy, because an HG body will not take this cassette. Then match it with a 12-speed HG chain and a rear derailleur rated for a 51T largest sprocket.
