US Patent 11680633 Chainring

A chainring is disclosed herein. The chainring includes a front surface, a back surface, a center, and an outer diameter. The chainring has a thickness which varies from a lesser thickness at the outer diameter to a greater thickness nearer the center. The thickness of the chainring varying substantially the same on the front surface and the back surface such that the chainring is substantially symmetric about a plane dividing the front surface and the back surface along a direction normal to an axial direction of the chainring.