When using a sharp Camshaft, the so-called intake timing is extended. Therefore, it is recommended to install stiffer Valve Springs, as these allow the valves to close more quickly.

In combination with flow-optimized valves featuring larger Valve Plates, a significant increase in performance can be achieved. POLINI offers a complete valve kit here in its usual high quality. An absolute must-have for all 4-stroke performance enthusiasts.