US Patent 9469379 Motorcycle chain guide

A chain guide for guiding a chain traveling around a sprocket supported on a frame of a motorcycle is disclosed. Typically, the chain guide includes a U-shaped, plastic body with a channel formed along an inner surface to of the body and a plastic removable chain guide oriented such that a surface of the removable chain guide insert is facing the chain running through the channel. The inner and outer walls of the body configured with a first thickness along the top edge and downward to a bevel to a second, smaller thickness downward to a bottom edge along an outer surface.