The Polini Evolution version is designed for riders looking for a more complete upgrade compared to the standard variator. The kit includes a mobile half pulley, DLC-treated bush, fixed half pulley and compression spring, providing a more extensive and targeted improvement to the transmission’s operating characteristics.

The 13-gram roller calibration ensures a quicker response during acceleration and a better ability to keep the engine within its ideal operating range. The result is a more responsive riding experience, with stronger acceleration and improved recovery performance, while maintaining smooth and comfortable operation.

The DLC-treated bush reduces friction on the sliding surface, improving mechanical precision and ensuring consistent performance over time. The Polini fixed half pulley completes the system: compared to the original component, the angle is reduced from 14° to 13°, with a recalculated geometry designed to optimize belt movement and improve shifting efficiency.

A complete solution for riders who want to make a significant improvement to their scooter’s transmission, achieving a sportier, smoother and more effective response in all riding conditions.