Polini D4.3 Torque Compression Spring – Piaggio 50cc 2-Stroke CVT Transmission | 243.103 Performance Upgrade

Enhance the performance of your Piaggio 50cc 2-stroke scooter with the Polini D4.3 Torque Compression Spring (Part #243.103). This precision-engineered spring increases torque driver pressure in the CVT (Continuously Variable Transmission), delivering improved belt grip, quicker acceleration, and sharper shifting. Crafted by Polini in Italy, this premium-grade spring is perfect for riders looking to boost throttle response and ride feel in stock or performance setups.

• Fits Piaggio 50cc 2-Stroke Engines – Including popular models like the Piaggio Zip, Vespa ET2, and more

• D4.3 mm Compression Spring – Specifically calibrated for CVT tuning

• Improves Belt Grip & Launch Performance – Reduces belt slip and increases throttle response

• Ideal for Both Stock and Tuned Builds – Enhances ride dynamics under varied RPMs

• Made in Italy by Polini – Trusted Performance Parts Manufacturer

• Part Number: 243.103