Athena 70cc Aluminum Cylinder Kit for Two Stroke Yamaha Zuma with 10mm wrist pin.
Please let us know if you need 12mm wrist pin piston kit for use with other than Yamaha Zuma Endorsed by Yamaha

• Kit comes with
• Cylinder
• Piston Kit with Rings and Wrist Pin w/circlips
• Gaskets (3)
• Reeds to add more gas and better gas flow
• EMGO 35mm High Performance Air Filter
• Larger Carb Jet Keihin (80/85)
  
  This features an aluminum cylinder with nickel carbide plated bore.
  
  Because the cylinder is aluminum rather than cast iron the engine stays cooler and cools down quickly. This will products more even power and make better use of oil plus the engine will last longer so you get a much better value than cast iron.
  
  47.6mm bore gives you 70cc of pure power, remember you will need more air and gas to get the full effect.
  
  If you have a chinese brand scooter you will need a piston kit with 12mm wrist pin, this can be purchase separate for kit to work in your scooter. Please let us know in comments and we will take care of this for you.
  
  Scootertronics uses Athena kits in our Zuma racing scooters along with MRP products and Polini products.