XTR CS-M9101-12 Cassette 12-Speed 10-51t size-27-5-x-2-40 Please refer to the size

Please refer to the size chart for conversion

Bio-degradable glide wax is safe for the environment

polarized lenses and UV400 protection that blocks 100% of those harmful UVA and UVB rays

Double Lock Slider: Double locking clip for easy and safe fixation and adjustment of the binding on the IFP (Integrated Fixation Plate)

Three different walk modes

XTR CS-M9101-12 Cassette 12-Speed 10-51t size-27-5-x-2-40 Please refer to the sizeShimano XTR CS M9101 12 Cassette 12 Speed 10 51t Black Gray Micro Spline ICSM9101051 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