Shimano Ultegra CS-R8101 cassette sprocket 15 teeth

Description

When you want to keep the pace on the climbs and in the wind, the details in the drivetrain matter. The Shimano Ultegra CS-R8101 cassette sprocket 15 teeth brings back that shifting confidence you can rely on every time you accelerate.

Main benefits

A standalone sprocket serves as a precise replacement for a worn part in the cassette and helps maintain smooth operation of the entire derailleur system. Thanks to that, the chain won’t feel “rough” under load.

For a road bike, a 15-tooth sprocket offers a well-balanced gear for riding at tempo, when you often vary your cadence and need a quick response to changes in gradient.

Compatibility with Ultegra-series cassettes simplifies servicing, because you replace only what’s truly worn. This saves you time and avoids unnecessary replacement of the entire set of sprockets.

The recommended Shimano 12s chain fits the system this part was designed for, so shifting stays calm and predictable even under pressure.

Technical specifications

Technical designation of the sprocket: CS-R8101.

Intended use: road bike.

Sprocket with 15 teeth for fine gear spacing.

Compatibility with CS-R8100 cassettes in the 11–30 and 11–34 range.

Conclusion

This sprocket is exactly that small part that can restore crispness and quiet running to your drivetrain. It’s ideal for riders who focus on functional servicing and want to preserve the character of Shimano Ultegra shifting.

If you’re tuning your cassette for regular training as well as racing, a 15-tooth sprocket helps you keep a smooth cadence without unnecessary jumps between gears.

Key features

• Replacement sprocket for a Shimano cassette
• Designed for a road drivetrain
• Compatible with CS-R8100 cassettes
• Supports Shimano 12s chain
• 15-tooth sprocket

EAN: 4550170313142