With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12-speed cassette cuts weight while increasing SHIMANO’s MTB gearing by another gear.

With SHIMANO’s new MICRO SPLINE freehub rear hub body and HYPERGLIDE tooth profile, these 10-45 and 10-51D cassettes provide advanced shifting performance.

• Excellent shifting performance

• New shift ramp designs deliver the fastest and smoothest shifts with HYPERGLIDE

• BEAM SPIDER

• Lighter and stiffer construction

• Reduces cassette inertia, resulting in faster acceleration and increased chain safety

• MICRO SPLINE

• Lowest 10D sprocket made with the new FREEHUB construction

• 12-speed drivetrain with wide range and short gear ratios