Shimano CS-R8101 Cassette 11-34 ULTEGRA 12-Speed

Brand: Shimano

SKU: Q3PYU05C

$185.00 Full price

$185.00

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$189.99 Full price

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Product Details

Description

The uninterrupted shifting experience of the ULTEGRA R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed FREEHUB bodies.

HYPERGLIDE+ cassettes revolutionized off-road shifting with its seamless shifts both up and down the gear range. Now it's time for the technology to change road cycling. Even during maximal efforts up a climb or racing a friend, riders no longer need to back off to perform a shift. In any gear, Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies. All this while increasing to 12-gears, ULTEGRA CS-R8100 cassettes are the new paradigm in road shifting.

Specifications

Product Overview

Product

Shimano CS-R8101 Cassette 11-34 ULTEGRA 12-Speed

Brand

Shimano

Supplier SKU

ICSR810112134

Year Model

2024

Frequently Asked Questions

What is the Shimano CS-R8101 ULTEGRA Cassette used for?

It provides smooth, reliable 12‑speed gearing for road cycling, with cross-compatibility to 11‑ and 12‑speed FREEHUB bodies, aiding climbs, sprints, and steady cruising.

Why choose the Shimano CS-R8101 ULTEGRA Cassette?

It delivers ULTEGRA-level performance with Hyperglide+ efficiency, offering seamless shifts in any gear and improved drivetrain efficiency thanks to larger cogs.

Who is the Shimano CS-R8101 ULTEGRA Cassette designed for?

Road cyclists who want precise, effortless shifting across varied terrain and who use an ULTEGRA R8100 drivetrain with compatible FREEHUB bodies.

Seamless 12‑Speed Range

Experience uninterrupted shifts across all gears, so climbs, sprints, and flats feel natural. Larger driving cogs boost efficiency and ensure compatibility with both 11- and 12-speed FREEHUB bodies.

Efficient, Powerful Climbing

Stay in the moment during maximal efforts with smooth up and down shifts without backing off. Hyperglide+ engineering brings faster, cleaner transitions on every ride.

Broad Compatibility & Modern Shifting

Built for today’s road systems, it pairs with existing FREEHUB bodies while delivering a cutting-edge 12-speed platform. The result is consistent performance across the entire cassette range.