Athena P400485100099 Big Bore Hyper Race Cylinder Kit (70cc) - 47.66mm Bore drive-chain-tensioner Maximum rider weight: 27 kg/60

Maximum rider weight: 27 kg/60 lbs

Includes radio mount kit

P/N: 18001-83B

Trap door is available in wrinkle black at no additional cost

Athena P400485100099 Big Bore Hyper Race Cylinder Kit (70cc) - 47.66mm Bore drive-chain-tensioner Maximum rider weight: 27 kg/60Use stock reeds for Yamaha Vino. The race version of the popular Athena 70cc big bore kit, available in one part number. All parts are available separately for custom builds. Cylinder kits include cylinder, head, piston assembly, reeds, and gaskets. Shaped, domed cylinder head, state of the art cylinder with special porting, lighter flat top piston assembly (all of which are designed for higher compression and improved combustion efficiency. Vehicle