Shimano CS-M9101-12 Cassette - 12-Speed 10-51t Black/Gray Micro Spline Rack Mount Position-High 5mm internal width is versatile

5mm internal width is versatile fitting tires from 2

A pair of chain tensioners designed to work with horizontal drop outs

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Shimano CS-M9101-12 Cassette - 12-Speed 10-51t Black/Gray Micro Spline Rack Mount Position-High 5mm internal width is versatileShimano CS M9101 12 Cassette 12 Speed 10 51t Black Gray Micro Spline. Shimano XTR CS M9100 cassette features better chain retention and ground clearance. This cassette is built with a strategic application of aluminum titanium and steel materials for an optimal blend of weight savings rigidity and durability. Compatible with Shimano Hyperglide+ chains Hyperglide+ technology offers better chain engagement stronger retention and smoother pedaling for