Shimano Deore XT CS-M8100 12-Speed Mountain Bike Cassette 10-51T Micro Spline HY
Shimano Deore XT CS-M8100 is a genuine Shimano cassette delivering precise, reliable shifting for mountain bike riders.
Genuine Shimano Deore — brand new in retail packaging.
Will it fit? This is a 12-Speed 10-51T, Micro Spline cassette. For the matching Shimano freehub — pair with a compatible 12-Speed chain.
Key Specifications
Brand | Shimano |
Series | Shimano Deore XT CS-M8100 |
MPN | CS-M8100 |
Type | Cassette |
Speeds | 12-Speed |
Key Spec | 10-51T, Micro Spline |
Material | Steel / aluminum |
Weight | 470 g (16.6 oz) |
Color | Silver / Black |
Country of Origin | Japan |
Condition | Brand new — original Shimano retail packaging |
Technology Highlights
✓ HYPERGLIDE+ delivers fast, smooth, shockless shifting in both directions under load.
✓ Wide-range gearing makes climbing easier and descents more confident.
✓ E-bike rated to handle the extra torque of e-drivetrains.
✓ Micro Spline freehub interface enables the 10T smallest cog for a huge range.
✓ Genuine Shimano quality — consistent performance and durability.
What's in the Box
1 × Shimano Deore XT CS-M8100 cassette
Lockring & documentation (as supplied)
Original Shimano retail packaging
Brand new in retail packaging. Ships from Ontario, California (US domestic) · Estimated delivery 3–5 business days · Free 30-day returns.
