FASSTEK TORQUE SPRING

Exclusively for Yamaha Aerox.

The Fasstek Torque Spring is a high-performance CVT contra spring designed for scooters and automatic motorcycles. It is installed in the rear pulley (clutch assembly) and helps control how quickly the CVT belt shifts under acceleration.

🔧 What it does:

• Increases belt tension for stronger initial acceleration
• Improves mid-range pickup
• Reduces belt slip under load
• Helps maintain better RPM during throttle input

🏍️ Why riders use it:

• Better throttle response
• Improved performance with aftermarket variators or lighter rollers
• Ideal for tuned or modified setups

It’s commonly used on scooters like Aerox, NMAX, and similar CVT-equipped bikes to enhance overall ride performance.