Why Is the Shimano Ultegra CS-R8000 the Right 11-Speed Cassette for Serious Road Builds?

The Shimano Ultegra CS-R8000 is the system-engineered cassette for the Ultegra R8000 groupset, available in a wide range of road and mixed-surface gear ratios to match any terrain. Built with Shimano's HG-EV technology for rider-tuned gear combinations and cadence management, the R8000 cassette achieves 11-speed gear range without compromising the durability expected of 10-speed systems, backed by improved HYPERGLIDE shifting. Compatible with both HG-EV and HG-X11 chains for flexibility across drivetrain configurations.

Compatible with all Shimano 11-speed road drivetrains including Dura-Ace R9100, Ultegra R8000, and 105 R7000. Requires a standard Shimano 11-speed freehub body.