The Shimano Deore CS-M5100 is an 11-speed mountain bike cassette engineered for 1x drivetrains, offering a wide 11–51T range that covers everything from technical climbs to fast descents. Designed as part of the Deore M5100 groupset, it delivers smooth, reliable shifting at an accessible price point — making it a go-to choice for trail, enduro, and all-mountain riders who demand performance without the premium cost. This listing is a trade 5-pack, ideal for workshop stock.

Highlights

• HyperGlide technology: Specially shaped shift ramps and tooth profiles deliver fast, precise gear changes under load.
• Wide 11–51T range: Cog progression of 11-13-15-18-21-24-28-33-39-45-51T gives you the gearing to tackle any gradient on a 1x setup.
• Deore M5100 series: Designed as an integrated component within the Deore 11-speed drivetrain ecosystem for predictable, reliable performance.
• Steel & aluminium construction: Larger cogs in lightweight aluminium, smaller cogs in steel for durability where it counts.
• Trade 5-pack: Five cassettes per pack — ideal for bike shop workshop stock or fleet builds.

About the Deore M5100 Series

Shimano's Deore M5100 groupset brings proven MTB technology to the mid-range price point without compromise on shifting feel. The CS-M5100 cassette is the cornerstone of a 1x11 drivetrain setup, providing a wide range that eliminates the need for a front derailleur while keeping the drivetrain simple, clean, and reliable on the trail.

Compatibility & Fit

The CS-M5100 is an 11-speed cassette designed to fit standard Shimano HG freehub bodies. It is compatible with 11-speed Shimano MTB drivetrains, including the Deore M5100 rear derailleur (RD-M5100) and Deore M5100 shifters. The 11–51T range is designed for 1x11 drivetrain use. Not compatible with 10-speed or 12-speed systems, SRAM XD/XDR drivers, or Shimano Micro Spline freehubs.