Shimano Ultegra Chainring

No, this chainring is specifically engineered for 10-speed road drivetrains. Using it with an 11 or 12-speed system will result in poor shifting performance and potential drivetrain damage due to the different chain widths and spacing requirements.

You need to measure the Bolt Circle Diameter (BCD) of your crankset. This ring uses a 110mm BCD, which is a standard compact size. If your crankset is a standard 130mm BCD, this ring will not bolt on.

With 34 teeth, this is a small chainring, typically used as the inner ring on a compact crankset. It is designed to provide lower gearing for easier climbing.

It is highly recommended. A worn chain will accelerate the wear on your new chainring teeth, significantly reducing the lifespan of the replacement part. Installing a fresh chain ensures both components wear together properly.

While it may physically bolt onto other 110mm BCD cranks, shifting performance is optimized when matched with Shimano-specific ramp and pin profiles. For the best results, we recommend using this ring with a compatible Shimano Ultegra crankset.