Shimano Ultegra 6800 Chainrings

This chainring is specifically engineered for the Shimano Ultegra 6800 4-bolt asymmetric crankset. While it may physically bolt onto other 110mm BCD 4-bolt cranks, it is optimized for the specific shift ramps and pins of the 6800 drivetrain and may not offer the same performance with other systems.

No, this is an outer chainring only. You will need to purchase the corresponding inner chainring separately to complete your drivetrain setup.

The asymmetric 4-bolt pattern means the bolt holes are not spaced evenly around the circle. This design ensures the chainring can only be installed in one specific orientation, which aligns the shift ramps correctly with your crank arm for optimal performance.

Yes, the Ultegra 6800 chainring is designed specifically for Shimano 11-speed road drivetrains. It is built to handle the tolerances and shifting requirements of that system.

Cold-forging aligns the grain structure of the metal, resulting in a chainring that is significantly stiffer and more durable than one made through standard machining. This stiffness is crucial for efficient power transfer when you are putting high torque through the pedals.