Pre-assembled Shimano Deore 12-speed cassette.

With its BEAM SPIDER construction, the new SHIMANO DEORE M6100 12-speed cassette reduces weight while adding an additional gear to the SHIMANO MTB range. Thanks to the new SHIMANO MICRO SPLINE FREEHUB body and HYPERGLIDE+ teeth, the 10-51D cassette guarantees extraordinary shifting performance. 

Extraordinary performance.

Teeth: 10-12-14-16-18-21-24-28-33-39-45-51D