Athena 070200 Big Bore Cylinder Kit with Head (47.6mm, 70cc) - 10mm Pin Domed Head Piston Performance Upgrade, Converts 50cc to 70cc, Compatible with Yamaha Zuma 50 & Vino 50 Kenda Inner Tube Its bias‑ply construction provides rugged

Its bias‑ply construction provides rugged strength and consistent handling

Our kit includes four BIG HAWG hole saws

GasGas EC (2018)

Built with a durable brushless motor

REDLINK PLUS Intelligence ensures maximum performance and protects from overloads

Athena 070200 Big Bore Cylinder Kit with Head (47.6mm, 70cc) - 10mm Pin Domed Head Piston Performance Upgrade, Converts 50cc to 70cc, Compatible with Yamaha Zuma 50 & Vino 50 Kenda Inner Tube Its bias‑ply construction provides ruggedUPGRADE YOUR SCOOTER TO THE NEXT LEVEL OF PERFORMANCE Extract maximum power and unmatched acceleration from your 50cc scooter with the Athena Big Bore Cylinder Kit (Part No. 070200), a premium performance package engineered in Italy to seamlessly convert your factory engine into a high revving, high output 70cc powerhouse. Entirely cast from high grade aluminum and treated with a specialized Motor Nicksil (Nickel Silicon) coating, this cylinder