Shimano DEORE XT M8100 12-Speed Cassette 10-51T Black/Silver Sunshine_Enriched the trainer is incredibly responsive

the trainer is incredibly responsive and immediately reacts to changing speed or gradient

Troy Brosnan's go-fast signature tire

Cadence sensor

more durable

hollow aluminum crown

Shimano DEORE XT M8100 12-Speed Cassette 10-51T Black/Silver Sunshine_Enriched the trainer is incredibly responsiveWith its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12 speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10 45 and 10 51T cassettes deliver advanced shifting performance. Definitive shifting performance New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+ BEAM SPIDER Lighter and stiffer