Stage6 torque springs for Piaggio / GY6 4-stroke engines deliver precise variator tuning and optimized shift response.

Available in multiple stiffness grades to match your specific engine setup. Correct spring tension is essential — too soft and the belt slips, too stiff and it won't engage properly, both limiting performance. The right spring unlocks your engine's full potential without forcing RPM gains that don't suit your configuration. Manufactured from carbon-silicon spring steel with heat treatment and black coating for reliability and minimal wear.

Choose the strength that complements your tuning strategy, not just the hardest option available.