SHIMANO Cassette Sprocket CS-R8100 Ultegra 12speed 11 to 34T

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SHIMANO Ultegra cassette 12-speed CS-R8100

The Shimano Hyperglide + cassettes have set new standards in off-road use with their smooth upshifts and downshifts across the entire range of gears. For the Ultegra 8100 group, the Japanese have also adopted this technology for racing bikes. Even with the greatest effort on climbs or when sprinting to the finish line, you can now shift gears without hesitation. This is made possible, among other things, by longer teeth. Despite the new design and the additional 12th sprocket, the CS-R8100 cassettes are compatible with previous 11-speed Road freehub bodies.


11-12-13-14-15-16-17-19-21-24-27-30 teeth
11-12-13-14-15-17-19-21-24-27-30-34 teeth

Technical specifications:

Material: aluminum, steel
Technology: Hyperglide +
Switching stages: 12
Graduations: 11-30 or 11-34 teeth
Translation bandwidth: 273 - 309%
Compatibility freewheel: Shimano 11- / 12-speed Road
Compatibility chain: Shimano CN-M8100 12-speed , CN-M9100 12-speed
Color: silver, gray

Weight according to the manufacturer: 294g (11-30 teeth), 345g (11-34 teeth)
Weight weighed: 294g (11-30 teeth), 347g (11-34 teeth)

SHIMANO Cassette Sprocket CS-R8100 Ultegra 12speed 11 to 34T