Upgrade your Yamaha or Minarelli 50cc 2-stroke scooter with the Polini D3.8 Torque Compression Spring (Part #243.104). This high-performance spring is designed to enhance the operation of your CVT (Continuously Variable Transmission) by increasing torque driver pressure. Riders will enjoy improved belt grip, quicker acceleration, and smoother gear shifts—perfect for both tuned and stock setups.
Manufactured by Polini in Italy, this premium-grade spring delivers reliable, consistent performance for enhanced riding dynamics.
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Fits Yamaha & Minarelli 50cc 2-Stroke Engines
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Enhances Belt Grip & Shifting Performance
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Ideal for Acceleration and Performance Builds
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Made in Italy by Polini – Trusted scooter tuning brand
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Part Number: 243.104
