With its BEAM SPIDER construction, the XTR M9100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10-45 and 10-51T cassettes deliver the best MTB shift experience on offer.

FEATURES
- Definitive shifting
Let you pedal continuously while shifting
Increased acceleration by reducing inertia and weight by BEAM SPIDER construction
- New MICRO SPLINE * construction to engage FREEHUB body

PRODUCT SPECIFICATIONS

- MODEL NO CS-M9101-12
- SERIES XTR M9100 Series
- Average weight 357 (10-45T) 367 (10-51T)
- Combination 10-12-14-16-18-21-24-28-32-36-40-45T | 10-12-14-16-18-21-24-28-33-39-45-51T
- Combination name (Group name) 10-45T 10-51T
- Type HYPERGLIDE+
- Compatible chain HG 12-speed
- Rear speeds 12
- Aluminum gear_QTY (pcs) 3
- Aluminum spider arm_QTY (pcs) 1
- MICRO SPLINE ✔
- Steel gear_QTY (pcs) 4
- Titanium gear_QTY (pcs) 5