We're not surprised to assert that Shimano carried Ultegra's stunning aesthetics all the way from the groupset-anchoring crankset to the chainring, but we're excited about it all the same. Not stopping at aesthetics, Shimano also constructed the Ultegra 6800 11-Speed Inner Chainring with the same care and precision we've become accustomed to from the company, inspiring confidence in its longevity and ability to display consistent functionality throughout a ride. Shimano uses ever-dependable aluminum to create a structure blends strength and low weight, with expert power transfer and precision to ensure you can move around through your drivetrain with ease as you fight for a position in a race. Though Shimano doesn't reveal top-secret BCD measurements, we do know that its chainrings are cross-compatible between its 11-speed drivetrains, so you're free to use this Ultegra Inner Ring with everything from your 105 11-speed to your Dura Ace crankset.