Shimano Ultegra CS-R8100-12 Cassette

The uninterrupted shifting experience of the ULTEGRA R8100 12-speedcassette range lets you climb, sprint, and push your limits withoutstopping to think about your next gear change, thanks to the largerdriving 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