torque spring Polini +25% / +10% for Piaggio 400, 500, Peugeot 400i P.34801

These Polini counter pressure springs increase pressure by 25%, making them ideal for light tuning. When the level of tune increases, so too should the strength of the springs. Variator must be calibrated if springs are changed.

• Original Spring Loading: 70/40mm/kg
• Polini Spring Loading: 70/50mm/kg
• Spring Thickness: 6mm
• Spring Length: 130mm
• Inside Diameter: 65mm
• Number of Turns: 6