Description
The Shimano Ultegra R8100 12-Speed Cassette sits one step below Shimano’s top-tier road groupset in hierarchy, but the shifting technology it carries is essentially the same. Hyperglide+ chain engagement is designed to deliver smooth, consistent shifts under load — whether you’re sprinting through the peloton or grinding up a long climb. The larger lower cogs are shaped to maximize chain wrap and drivetrain efficiency where it matters most.
Two range options cover most road riding scenarios: the 11-30t for flatter courses and crit racing where tight gear steps keep your cadence dialled, and the 11-34t for routes with serious elevation where that extra range at the top end earns its place. Both are compatible with standard Shimano 12-speed freehub bodies, and the cassette’s construction maintains the durability and shift quality Ultegra has been trusted for across thousands of road miles.
Shimano Ultegra R8100 Cassette Specs at a Glance
- Speed: 12-speed
- Range options: 11-30t, 11-34t
- Technology: Hyperglide+ shifting
- Compatibility: Shimano 12-speed freehub body
- Groupset tier: Ultegra R8100 series
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