Cassette Shimano XT CS-M8100 12-speed

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. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10-45 and 10-51T cassettes deliver advanced shifting performance.New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+Lighter and stiffer constructionReduces cassette inertia resulting in faster acceleration and increased chain security10T lowest sprocket realized by new FREEHUB body constructionDefinitive shifting performanceMICRO SPLINEWide range and close step 12-speed drivetrainWeight: 461 gGear combination: 10-46TTeeth combination: 10-12-14-16-18-21-24-28-32-36-40-45Combination name(Group name) 10-45TCompatible chain:: HG 12-speedSpeeds: 12-speed