Shimano CS-R8101 Ultegra 12-Speed Cassette - 11-34T

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Shimano CS-R8101 Ultegra 12-Speed Cassette - 11-34T

The Shimano Ultegra CS-R8101 12-Speed Cassette delivers the perfect balance of lightweight performance and wide-range gearing for the dedicated road cyclist. With its 11-34T spread, you get the close-ratio jumps needed for fast group rides alongside a generous bailout gear for steep alpine climbs. The rigid alloy sprocket carrier not only reduces overall weight but also improves shifting precision under load, ensuring every gear change is crisp and reliable mile after mile.

Key features:

- 12-speed Hyperglide+ (HG+) sprocket design for ultra-smooth and silent shifting even under power

- Wide 11-34T gear range (11-12-13-14-15-16-17-19-21-24-27-34) ideal for mixed terrain and endurance riding

- Lightweight alloy sprocket carrier reduces rotational mass and enhances stiffness

- Compatible with Shimano 12-speed road Hyperglide+ chains and drivetrains

- Durable steel sprockets on the larger cogs for long-lasting wear resistance

- Designed for precise cassette-to-chain engagement that minimises chain noise and drag

Whether you’re chasing personal bests on rolling roads or grinding up a mountain pass, this cassette offers the dependable, low-maintenance performance that Ultegra is known for.

GTIN: 4550170849887