AbsoluteBLACK Round 64 BCD chainrings are designed for use with all cranksets with a 104/64 BCD interface, including Shimano, SRAM, RaceFace, FSA, and more.

For our 28 and 30 tooth rings this 64BCD option provides a better chainline (around 46mm) for using granny gears. That means no rubbing while riding uphill and less drivetrain wear. The chainline will be on the 6th cog from smallest on a 10spd cassette. 3X crankset users, please be mindful that the 30T ring may touch the chainstay if there is not enough space, so please check.