Shimano XTR CS-M9101 Cassette — 12-Speed, 10-51T, Micro Spline, Mountain Bike
Shimano XTR CS-M9101 is a lightweight 12-speed 10-51T mountain cassette with titanium and alloy sprockets for race-level performance and a massive gear range.
Race-light 12-speed XTR range, genuine Shimano, brand new.
Will it fit? This is a 12-speed 10-51T cassette for a Shimano Micro Spline freehub. A standard HG freehub will not accept it. For Shimano 12-speed mountain drivetrains (XTR, XT, SLX, Deore), pair with a 12-speed HYPERGLIDE+ chain.
Key Specifications
Brand | Shimano |
Series | Shimano XTR M9100 |
Model | CS-M9101-12 |
MPN | ICSM9101051 |
UPC | 192790893327 |
Type | Cassette |
Speeds | 12-Speed |
Range | 10-51T (510%) |
Mount/Interface | Micro Spline (required) |
Material | Titanium / steel / aluminum |
Weight | 367 g (12.9 oz) |
Color | Silver |
Country of Origin | Japan |
Condition | Brand new, original Shimano retail packaging |
Technology Highlights
✓Huge 10-51T range, 510% spread for steep climbs and fast straights.
✓Titanium and alloy sprockets, flagship light weight at 367 g.
✓HYPERGLIDE+, fast, shockless shifting in both directions under power.
✓BEAM SPIDER construction, carries the large sprockets on an alloy carrier to save weight.
✓M9101 revision, the noise damping spacer is bonded to the cassette rather than supplied loose.
What's in the Box
1 × Shimano XTR CS-M9101 12-speed cassette (10-51T)
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.
