With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 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 advanced shifting performance.
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
MICRO SPLINE
Wide range and close step 12-speed drivetrain
Weight: 461 g
Gear combination: 10-46T
Teeth combination: 10-12-14-16-18-21-24-28-32-36-40-45
Combination name(Group name) 10-45T
Compatible chain:: HG 12-speed
Speeds: 12-speed
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