Malossi yellow torque spring for Yamaha Aerox and BW's scooters with horizontal Minarelli and Morini engines.

This contra spring is engineered to optimize CVT transmission performance, controlling variator engagement and preventing belt slip during power delivery. Constructed from heat-resistant special steel for extended durability under demanding conditions.

The spring is 35% harder than original equipment, ensuring reliable performance across repeated use cycles.

A critical upgrade for riders prioritizing transmission efficiency and longevity.

• 3.8k spring stiffness
• 53.5mm outer diameter, 115mm length, 3.7mm thickness.
• Compatible with Malossi Multivar and original CVT systems