Shimano XT M8100 12-Speed Cassette

Showcasing Shimano's new revolutionary HYPERGLIDE+ technology, the new 12-speed XT CS-M8100 Cassette provides improved shifting efficiency up and down the cassette.

Available in store

*Availability:  Check in store inventory

Paired with the new Shimano MICROSPLINE freehub, you have an incredibly lightweight package that delivers industry leading performance. The high geared 10-speed cog gives you all the speed you need to sprint to the finish, and either a 51T or 45T low gear allows you to effortless ascend the steepest trails. The 51T cassette pairs with a single ring up front while the 45T cassette is compatible with a single or double chainring up front. 


  • New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+
  • Lighter and stiffer construction
  • Reduces cassette inertia resulting in faster acceleration and increased chain security
  • 10T lowest sprocket realized by new FREEHUB body construction


  • Definitive shifting performance
  • Wide range and close step 12-speed drivetrain