Malossi torque springs engineered for Piaggio 50 2-stroke engines and compatible with Malossi Multivar and original CVT systems.

These contra springs are critical to transmission performance, regulating variator function and eliminating belt slip under acceleration.

Constructed from heat-resistant special steel for durability during aggressive riding. The 114% hardness increase over OEM springs delivers sharper power delivery and improved belt grip.

• Hardness : +114% vs. original
• Spring stiffness : 5.5k 
• Outer diameter × length : 57.8 × 103 mm
• Thickness : 4 mm
• Essential upgrade for riders seeking reliable CVT control and extended component lifespan.