Graves Motorsports Kawasaki ZX-4RR / ZX-4R Left Side Engine Case Cover. Graves Motorsports CNC’ed 6061 billet aluminum engine crankcase cover. Adds protection and style to your ZX4 sport bike. 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! Black anodized with laser etched “G” logo. Note: Added images demonstrates the reinforced ribbing on throughout the inside parts of the case for added protection! #GravesSpec Fitment: Kawasaki ZX-4RR / ZX-4R 2023 +