Shimano Ultegra CS-R8100 12 Speed Cassette

The Shimano Ultegra CS-R8100 is a high-performance 12-speed cassette featuring Hyperglide+ technology. This system allows for seamless shifting under maximum load, letting you maintain cadence during sprints or steep climbs. It is a significant upgrade for Di2 systems, offering faster and quieter gear changes compared to previous generations.

Designed for versatility, the cassette is compatible with both new Shimano 12-speed and existing 11-speed road freehub bodies. The 11-30T and 11-34T ranges use a mix of steel cogs and aluminum spiders to balance weight and durability. At 291g (11-30T), it provides a lightweight, racing-ready drivetrain solution for any road terrain.

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