Shimano SLX CS-M7100 Cassette - 12-Speed 10-51t Silver/Black Micro Spline. The Shimano SLX CS-M7100 12-speed cassette is optimized with rider-tuned gear combinations for MTB excellence.

• Advanced shifting performance provides the confidence to enjoy any trail
• Light and stiff construction reduces cassette inertia resulting in faster acceleration and increased chain security
• HYPERGLIDE+ technology provides better chain engagement stronger retention and smoother pedaling with greater power and confidence over rapidly changing terrain
• Designed with a Shimano Micro Spline body that features smaller and more widely distributed splines to limit cog damage on freehub
• The CS-M7100 cassette meets durability requirements for E-MTB applications