CS-R7101 105 12-speed cassette, 11 - 34T

The Shimano 105 12-speed cassette brings Hyperglide+ shifting to the 105 groupset. You get smooth, quick gear changes on the road and on the smart trainer. The sprockets are designed by computer and have shaped shift gates, so the chain moves across cleanly even when you're pushing hard on a climb or in a sprint.

Finer cadence control

Close ratio gearing keeps the jumps between sprockets small. It's easier to hold your ideal cadence, so you use your energy better on long rides, in group rides and on structured indoor sessions where steady power matters.

Light and stiff

The largest sprockets sit on a lightweight alloy carrier. That saves weight and makes the cassette stiffer. The sprockets are also cut away and drilled to take out more weight without losing strength.

Built to last

A nickel-plated finish resists corrosion and wear, and a pearl-bright steel lockring keeps it secure. That makes it a good choice for year-round road riding and for a dedicated trainer setup.

Key features

• Shimano 105 12-speed Hyperglide+ road cassette
• Computer-designed tooth profile with contoured shift gates for crisp shifting under load
• Close ratio gearing for efficient cadence control
• Lightweight alloy carrier on the largest sprockets for less weight and more stiffness
• Cut-away, drilled sprockets save weight without losing rigidity
• Hard-wearing, corrosion-resistant nickel-plated finish
• Pearl-bright steel lockring
• For Shimano Super Narrow 12-speed Hyperglide+ chains

Compatibility
Needs a Shimano 12-speed Hyperglide+ chain and a 12-speed drivetrain. It won't work with 11-speed chains