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ATHENA 70CC BOLT-ON BIG BORE CYLINDER KITS FOR SCOOTERS
Kits come complete with aluminum cylinder (with a nickel carbide-plated 47.66mm bore), cylinder head, piston assembly (piston, rings, 10mm wrist pin and circlips), carbon reeds and all required top-end gaskets
Optional high-performance crankshafts (sold separately) replace OEM and are manufactured to Athena's highest standards
Replacement top-end gasket kits and piston kits also available separately
NOTE: It is recommended that Athena's 17.5mm or 19mm Scooter carburetor be used with these bolt-on big bore kits.