Malossi Racing torque springs deliver precision transmission control for Piaggio 50 2-stroke engines. 

These contra springs are engineered to regulate variator function and eliminate belt slip, transferring engine power efficiently to the rear wheel. Built from heat-resistant special steel, they withstand aggressive riding and maintain performance over extended use. \

The 130% hardness increase over OEM springs provides superior durability and consistent engagement. Compatible with Malossi Multivar and original CVT systems. 

• Hardness : +130% vs. original
• Spring stiffness : 8.57k
• Outer diameter × length : 57.8 × 85 mm
• Thickness : 4.5 mm