Group: DEORE M5100. Shimano DEORE CS-M5100 11-speed Cassette. The Shimano CS-M5100 is the suitable cassette for the new DEORE 11-speed group. Features - Shimano DEORE CS-M5100. The HG cassette sprocket, which was developed for 11-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.
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