Shimano Ultegra CS-R8101-12 12S cassette

The ultra-fluid experience of the Ultegra R8100 12-speed range allows you to conquer climbs, sprint and go long distances without stopping to think about the next gear change. Larger sprockets maximise drivetrain efficiency and create compatibility with Shimano 11 and 12v hub bodies. Hyperglide+ cassettes revolutionised off-road shifting with perfect shifting and shifting fluidity. The time has come for technological changes in road cycling. Even during maximum efforts on climbs or racing with a friend, it is no longer necessary to reduce pressure on the pedals to shift gears. In any gear, Ultegra R8150 drivetrains maximise efficiency with larger sprockets and maintain compatibility with existing Hyperglide rear hub bodies. All this by shifting to 12 gears and without increasing weight, Ultegra CS-R8100 cassettes are the new frontier for road bikes.


Features

  • Refined 12-step progressivity maximises efficiency and acceleration performance for all race situations
  • Faster and smoother gear shifting even at maximum pedalling force
  • Compatible with the new 12v rear hub body and 11V road bike.


Technical Specifications

  • Model No.: CS-R8101-12
  • Series: Ultegra R8100 Series
  • Average manufacturer weight: 291 g (11-30D), 345 g (11-34D)
  • Type: Hyperglide+
  • Sprockets: 12
  • Compatible chain: 12-speed HG
  • Combination Name (Group Name): 11-30D, 11-34D
  • Combination: Titanium sprocket|1 11-12-13-14-15-16-17-19-21-24-27-30D
  • Combination: Titanium sprocket|2 11-12-13-14-15-17-19-21-24-27-30-34D
  • Spline type: HG L2 spline (STRADA specific for 12v).

 

Technology

HG HYPERGLIDE

The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG cassette sprocket, which was developed for the MTB 9-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.