SHIMANO Deore M6100 SLX M7100 XT M8100 XTR M9100 12Speed Micro Spline Cassette for Mountain Bike Flywheel Variable 10-51T 45T. 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.
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