Shimano Ultegra CS-R8000 11-speed cassette sprocket. Designed for use with 11-25T, 11-28T, 11-30T and 11-32T cassettes.
Compatible with:
- Shimano Ultegra CS-6800
- Shimano Dura-Ace CS-R9100
- These cassettes require the Shimano TL-LR15 lockring removal tool.

