Shimano Ultegra 6800 Chainring

While designed specifically for the Ultegra 6800 series, it is generally compatible with other Shimano 11-speed road drivetrains that share the same 110mm BCD. However, for the best shifting performance and aesthetic match, it is recommended to stick with the 6800 series components.

This chainring is engineered to optimize shifting performance with a 39t inner ring. Using a significantly different size inner ring may degrade the quality of your front shifting and could cause the chain to drop more frequently.

You will need a set of standard hex keys to remove your crank arm and a chainring bolt tool to hold the nuts in place while you unscrew the bolts. It is a straightforward swap, but ensure you have the correct size hex key to avoid stripping the bolts.

Look for 'shark fin' shaped teeth, where the tips have become pointed or hooked, or if you notice your chain skipping under load. If you are replacing your chain, it is often a good idea to inspect the chainring teeth for this wear, as a new chain will wear out rapidly on a damaged ring.

No, this chainring is specifically optimized for 11-speed chains and drivetrains. The tooth profile and spacing are engineered for the width of an 11-speed chain, so it will not function correctly or safely with 10-speed or 12-speed systems.