Nobody offers a more comprehensive line of motorcycle-specific oils and chemicals than Pro Honda. Developed through the performance and durability testing of professional racing, these Honda motorcycle oil and service products are crafted to the same high exacting standards as your Honda. Cutting edge high-performance racing transmission oil specifically formulated for all Honda CR and FourTrax 250R models. HP Trans Oil is also the hot tip for use in all Honda CRF 4-stroke transmissions. Transmission gears can whip conventional oil into a froth, and intense pressure at their teeth can lead to metal-to-metal contact. HP Trans Oil offers ultra-high film strength and shear stability to minimize transmission wear, while its high thermal stability prevents foaming and premature oil breakdown. Special anti-friction additives allow smoother shifting, while minimizing drag and power loss.