The seamless shifting of the ULTEGRA R8100 12-speed cassette allows the rider to concentrate fully on climbs, sprints or enjoyable cruising without having to worry about the next shift. Sprockets with more teeth provide greater drivetrain efficiency and ensure compatibility with SHIMANO 11- and 12-speed FREEHUB freehub bodies.
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 bike groupset always and everywhere scores with incomparable control and comfort - whether in an amateur race, on the hunt for a personal best time or on a companionable ride.
As with the Dura Ace R9200, Hyperglide+ is not only used in the components of the Ultegra, its Di2 components also rely on wireless technology to further simplify operation and ensure smooth shifting.
HYPERGLIDE+ cassettes set new standards for off-road shifting thanks to seamless upshifts and downshifts across the entire gear range. The time has come for this technology to be used on road bikes too. Shifting is now possible even when exerting maximum effort on climbs or in a direct duel with an opponent. In all gears, the ULTEGRA R8150 drivetrain ensures maximum efficiency thanks to larger teeth and ensures compatibility with existing HYPERGLIDE FREEHUB freehub bodies. Despite their expansion to 12 gears, ULTEGRA CS-R8100 cassettes set new standards for road bike shifting systems.
The Shimano Ultegra CS-R8100 cassette is characterized by seamless shifting operations that not only ensure quiet cruising, but also allow the rider to devote their full concentration to climbs and sprints. This is made possible by Hyperglide+ technology, which has already proven itself in the MTB segment with smooth shifting in both directions across the entire gear range.
Smooth upshifts and downshifts can be achieved even under maximum effort or in a direct duel with an opponent, while larger teeth maintain maximum efficiency. And the 12-speed cassette is even compatible with Shimano's previous 11-speed freehub bodies.
Compatible with 10/11-speed and Road 12-speed freehub
HYPERGLIDE+
Compatibility:
Chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
| Range of use | Road |
| Gradation | 11-30 |
| Exact gradation | 11-12-13-14-15-16-17-19-21-24-27-30 |
| Gears | 12 |
| weight | 291 g |
| groupset | Ultegra |
| Compatible chain | HG 12-speed |
| Abbreviation | CS-R8100 |
| Part no. | ICSR810012130 |
| Model year | 2022 |
| Product type | Cassette |
