Polini Clutch springsRef : POL00607A / 1149662

POLINI Clutch Spring (Manufacturer Ref: 243.112) — Polini Evolution compression spring, preload 30 kg. Designed for Piaggio engines, this spring integrates into the CVT transmission to provide finer adjustment of the variator preload based on power and usage. Ideal for urban use and light tuning, it allows for adjusting the acceleration response and managing torque at low and mid-range RPMs.

• Brand: POLINI
• Type: compression spring for clutch/variator
• Preload: 30 kg (item 243.112)
• Universe: Urban — suitable for 50 cc scooters and small displacement vehicles equipped with Piaggio engines
• Usage: precise CVT tuning, optimizing the behavior of the drivetrain based on engine configuration

Compatible with many Piaggio references and derivatives (Vespa, Aprilia, Gilera, MBK, etc.). Frequently affected models include: VESPA SPRINT 4T EURO 5, PIAGGIO ZIP S 50 4T EURO 5, and APRILIA SR 50 R. Note: if mounted on Yamaha engines, use is only recommended with the Polini Speed Drive.

Choose this Polini Evolution spring for controlled adjustment of your clutch/variator and a more consistent transmission response for daily urban use or scooter tuning. Professional installation is recommended.