Shimano Ultegra 6800 Chainring

This chainring is specifically designed for the Ultegra 6800 series. While it may physically fit other 11-speed cranksets with a 110mm BCD, the shifting ramps and pins are optimized for the Ultegra 6800 profile, so we recommend sticking to the specific series for the best performance.

You should look for 'shark fin' teeth, where the tips have become pointed and hooked rather than flat-topped. If you are experiencing chain skip under load or inconsistent shifting even after a fresh chain installation, it is likely time to replace your chainrings.

No, this product includes only the chainring itself. You will need to reuse your existing chainring bolts or purchase a new set separately.

No, this chainring is engineered specifically for 11-speed drivetrains. The tooth profile and spacing are optimized for the narrower 11-speed chain, and using it with a 10-speed system will result in poor shifting performance and potential drivetrain damage.

BCD stands for Bolt Circle Diameter, which is the measurement of the circle formed by the center of the chainring bolts. It is critical to match this measurement exactly to your crankset, as a 110mm BCD ring will not fit onto a crankset designed for a 130mm BCD.