Variator contra spring Stage6 – Medium (Yamaha Aerox / BW’s)

Description

Stage6 contra spring is designed for Yamaha Aerox and BW’s scooters and represents an important part of the CVT transmission. Its function is to maintain proper drive belt tension and ensure stable variator operation.

On modified or more powerful engines, belt slipping often occurs, so replacing the contra spring is essential for optimal transmission performance. Choosing the correct spring stiffness improves acceleration, responsiveness and overall scooter performance.

The spring is clearly marked across its entire surface, allowing easy identification of stiffness.

Hardness:
• Medium – medium stiffness

Features:
• ensures proper drive belt tension
• improves variator performance
• suitable for tuned and stock engines
• clearly marked spring stiffness

Compatibility:
• Yamaha Aerox
• Yamaha BW’s
• other scooters with Minarelli engine

For optimal results, we recommend selecting the appropriate stiffness based on the engine setup.