Ultegra R8100 Leave Time Behind. When developing the Ultegra R8100 series, Shimano took a holistic and 100 % performance-oriented approach, because great speed means great responsibility. Faster than ever before, the 12-speed road groupset scores with unparalleled control and comfort anytime and anywhere whether in an everyman race, on the hunt for a personal best time or on a companionable ride.
Sprocket combinations (OPTIONAL): 11-30T OR 11-34T
Sprocket ratios (OPTIONAL): 11-12-13-14-15-16-17-19-21-24-27-30 OR 11-12-13-14-15-17-19-21-24-27-30-34
Material:
Sprockets: steel (nickel plated)
Spiders: aluminium (anodized / painted)
Compatible with:
Rear derailleurs: RD-R9250, RD-R8150
Chains: CN-M9100, CN-M8100, CN-M7100, CN-M6100
Weight: 291 gr (11-30 teeth) / 345 g (11-34 teeth)
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.
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.
Compatible with SRAM 12spd Derailleurs (not compatible with Shimano 12spd Derailleurs)
HG Freehub Body Compatible (not XD Freehub Body Compatible) (not Microspline Body Compatible)