• The uninterrupted shifting experience of the ULTEGRA R8100 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change, thanks to the larger driving cogs maximizing drivetrain range and efficiency.
• HYPERGLIDE+ Technology
• Faster, seamless shifts under maximum pedaling load
• Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation
• Available in 11-30 or 11-34
• Compatible with road 11-speed FREEHUB body
• Recommended chain: CN-M8100

Attributes

Lightweight 12-speed HG+ cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes.

Hyperglide+ sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear.

• Wide gear range to meet the demands of all types of rider
• For use with 12-speed chains