torque spring POLINI +15% Yamaha, MBK 125, 45/31.5mm/kg, 45/37mm/kg, 4.1mm, 115mm, 53mm, 5

These Polini counterpressure springs increase pressure by 15%, 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: 45/31.5mm/kg
• Polini Spring Loading: 45/37mm/kg
• Spring Thickness: 4.1mm
• Spring Length: 115mm
• Inside Diameter: 53mm
• Number of Turns: 5