What Makes the Shimano Ultegra CS-R8000 11-30t the Racer's Cassette?

The Shimano Ultegra CS-R8000 in 11-30t is the close-ratio cassette choice for road racers and fast training riders, delivering tightly spaced gear steps that let you hold optimal cadence across rolling terrain without large jumps between cogs. Built on Shimano's Hyperglide tooth profiling with specially positioned shift ramps, the CS-R8000 achieves the fast, predictable indexed shifting that defines the R8000 groupset at its best. The 11t small cog supports high-speed sprinting while the 30t large cog covers moderate climbing without moving into a wide-range cassette configuration.

Compatible with all Shimano 11-speed road drivetrains including Ultegra R8000, 105 R7000, Dura-Ace R9100, and Di2 R8070. Fits standard HG freehub bodies. Requires a Shimano 11-speed Hyperglide chain such as CN-HG901-11, CN-HG701-11, or CN-HG601-11.