This set of 4 types of Polini clutch springs enables the optimum adjustment to be found, and constantly adjusts your scooter’s clutch.

12-spring kit:

• 3 springs +20%
• 3 springs +35%
• 3 springs +50%
• 3 springs +100%
• Helps improve the performance of the variator
• Highly-resistant springs in intense usage conditions