SHIMANO XT CS-M8100 12-Speed Cassette MTB 10-45 / 51T Micro Spline

With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. SHIMANO DEORE XT - 12-Speed - HYPERGLIDE+ - MTB Cassette Sprocket.

eBay