Billet aluminum engine covers are now being mandated by many racing organizations across the USA (MotoAmerica, AMA, MRA, CCS, WERA, AFM, etc). Graves Motorsports Engine Covers are designed to help guard against leaks caused by grind-through thus preventing crashes and delays from spilled oil. When protection matters, trust only Graves Motorsports Engine Covers! Graves Motorsports CNC'ed 6061 billet aluminum engine crankcase cover. Black anodized with laser etched "G" logo. Adds protection and style to your bike.