3x3 Racing Clutch Springs for 107mm Diameter Clutches Precision-tuned clutch springs designed for Minarelli-engine scooters including Yamaha Aerox, Malaguti F12, and compatible Piaggio and Peugeot models.

Three strength options allow you to dial in engagement timing and optimize performance after engine modifications. Choose based on your tuning needs.

Softer springs suit stock engines, while harder springs work with performance exhausts and variator upgrades. For maximum gains, consider pairing with variator weights or torque springs rather than relying on spring hardness alone.

Specifications :

• For 107mm clutch with 3 shoes
• Compatible with Minarelli, Peugeot, Piaggio platforms 
  

Three strength ratings : 

• Black (soft), 
  
• White (medium), 
  
• Blue (hard)
• Set of 3x3 springs per package