HEAVY DUTY READY - Formulated for high-performance, heavy-duty conditions to keep your bike performing at its peak.

SMOOTH SILENT RIDE - Engineered for quiet clutch action with reduced slippage, enhancing your riding experience.

LONG LASTING PROTECTION - Durable additive package ensures longer oil life and less frequent changes—save time and money.

OEM APPROVED PERFORMANCE - Meets or exceeds all original equipment manufacturer specs for reliable, worry-free use.

STAY COOL UNDER PRESSURE - Advanced heat transfer formula keeps your clutch and chaincase running cooler, extending component life.

Lucas Oil 40790 Primary Chaincase Oil is a premium 946ml lubricant designed for high-performance motorcycles. It combines easy-flowing base oils with a specialized additive package to efficiently transfer heat away from clutch and friction plates, reducing slippage and wear. This oil meets or exceeds all OEM requirements, ensuring quiet operation and extended chain, sprocket, and oil life under heavy-duty conditions.