A strong choice for road riders, racers and fast group riders who prefer close 11-speed ratios and spend most of their time on flatter or rolling routes.
The Shimano ULTEGRA CS-R8000 is an 11-speed road cassette designed for the ULTEGRA R8000 groupset. This 11-25T version uses close ratios from 11 through 17 teeth, then steps through 19, 21, 23 and 25T, helping you make small cadence adjustments without large jumps between gears.
Shimano’s HYPERGLIDE sprocket shaping supports smooth, precise gear changes, while the HG-EV design gives you a rider-tuned spread for road and mixed-surface use. In day-to-day riding, the R8000 drivetrain is known for smooth, consistent and near-silent shifting when correctly set up and maintained.
At 232 g, it is a practical choice for upgrading or replacing an 11-speed Shimano road cassette without moving to a more expensive race-focused option. The cassette has 11 steel gears with one carbon and one aluminium spider arm, combining dependable wear resistance with a controlled weight.
Close 11-25T gearing
Small steps between the most-used sprockets make it easier to maintain a smooth cadence on fast roads and rolling terrain.
HYPERGLIDE shifting
Shaped sprockets and dedicated shifting features help deliver clean, precise gear changes across the cassette.
11-speed road format
A straightforward replacement or upgrade for compatible Shimano 11-speed road drivetrains.
HG-EV design
Provides a rider-tuned gear combination for cadence management across road and mixed-surface riding.
Durable steel sprockets
All 11 gears use steel construction, offering a sensible balance of durability and everyday performance.
232 g average weight
Keeps the cassette suitably light for performance-oriented road builds without relying on titanium gears.
Chain compatibility
Designed for use with HG-EV and HG-X11 chains; match the cassette to your existing drivetrain before ordering.
General
Gearing
Dimensions & weight
Compatibility
Construction
HG-EV
Choose a rider-tuned 11-speed gear combination to manage cadence across road and mixed-surface riding. The design supports both wider and closer ratios while maintaining durability and improved shifting performance.
HYPERGLIDE
Shaped sprockets and shifting features help deliver smoother, more precise gear changes across the cassette.
HG-X11 Chain compatibility
The directional HG-X11 chain is optimised for smoother shifting and improved drivetrain performance, with the chain sides designed for front and rear shifting.
Shimano is a Japanese component brand founded in 1921 in Sakai, Osaka. The company began with bicycle component manufacturing and has grown into a global business focused on bicycle components, fishing tackle and rowing equipment, while keeping its headquarters in Sakai.
In cycling, Shimano is best known for building complete component ecosystems that span road, mountain, gravel, commuting and e-bike use. Its range covers drivetrains, brakes, wheels, pedals, shoes and related parts, and the brand has had a long presence in Australia through a local business established in Sydney in 1992.
