Max-Cycle® is specifically formulated to significantly improve motorcycle engine (and transmission) performance. It’s recommended for use in both air-cooled and liquid-cooled 4-cycle engines and it’s compatible with wet-clutch transmissions.

Formulated with select synthetic base oils and Royal Purple's proprietary Synerlec® additive technology, Max-Cycle® provides unparalleled film strength that is up to 400 percent stronger than the leading synthetic and mineral oils. Its shear stability and oxidation resistance promote greater performance and protection.

Independent Test Lonview Inspection conducted a test to determine if switching to Royal Purple's Max-Cycle® would reduce motorcycle operating temperatures.

Conclusion Switching to Max-Cycle® throughout the motorcycle reduced engine operating temperatures from 24 to 44 degrees F.

Read the full report Longview Inspection Report (.pdf)

Synerlec® greatly reduces engine wear — including ring, cylinder and bearing wear. It continuously adheres to metal surfaces, even after shutdown, to provide instant protection at startup until a full fluid film can be established.

Max-Cycle® exceeds API / JASO new warranty requirements and is compatible with other mineral and synthetic motor oils. No flushing is necessary prior to use. It’s available in 10W30, 10W40 and 20W50 viscosities.