Est. 1982

Shimano CS-M9100 10t & 12t Replacement Micro-Spline Sprocket Units


The Shimano sprocket for CS-M9100-12 is an original spare part for the XTR 12-speed cassette in the increments 10-45 or 10-51. It is one of the first two sprockets with 10t or 12t. All these sprockets are made of steel.

The 10 and 12 tooth version is only available as a set, which can also be used for the following:-

Fits Micro-Spline 12-Speed

XTR CS-M9100

XT CS-M8100

SLX CS-M7100

Deore CS-M6100