Abstract: Apparatus for substantially covering a motorcycle open belt primary drive system that improves the safety of the motorcycle riders as well as protects the drive system of the motorcycle. The apparatus is capable of being mounted to a conventional drive system and frame of a motorcycle having an open belt primary drive system. The apparatus includes a front pulley cover assembly, a rear pulley cover assembly, and a grill. Each pulley cover assembly includes a bearing housing that is attached to the drive system pulley of a motorcycle, a pulley cover, and a bearing that joins the bearing housing and the pulley cover into a single assembly. The bearing provides a reduced friction connection between the bearing housing and the pulley cover that allows the pulley cover to freely rotate or spin independent of the bearing housing.