Shimano Deore Cassette Sprocket, 12-speed. Note: There are 2 options in this listing, please check carefully before purchasing! Option 1: M6100 10-51T, just CS-M6100 10-51T cassette (Micro Spline). Option 2: M7100 10-51T, just CS-M7100 10-51T cassette (Micro Spline). Option 3: M6200 10-51T, just CS-M6200 10-51T cassette (Micro Spline). Package includes: 1pc cassette. CS-M6100-12 Shimano Deore - 12-Speed - HYPERGLIDE+ - MTB Cassette Sprocket. With its BEAM SPIDER construction, the new Shimano Deore M6100 12-speed cassette shaves weight while increasing Shimano's MTB gearing range by another gear. Using Shimano's new Micro Spline freehub body and HYPERGLIDE+ tooth profile, the 10-51T cassette delivers advanced shifting performance. HYPERGLIDE+ provides fast and smooth shifting. BEAM SPIDER construction cuts weight and boosts stiffness. 10-51T wide range 12-speed gear combination. CS-M7100-12 SLX - 12-Speed - HYPERGLIDE+ - MTB Cassette Sprocket, with similar BEAM SPIDER construction and Micro Spline compatibility for extended gearing range.

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