Athena Big Bore Hyper Race Complete Cylinder Kit (70cc) - 47.66mm Bore - P400485105002

Complete 70cc Big Bore Performance Kit
Kits feature a new cylinder head design, lighter flat-head piston and special porting to increase power
Race crankshaft is made of special steel that is machined-forged for added strength and features a 12mm wrist pin
Lighter connecting rods have full rounds and special needle bearings to reduce crankshaft volume
Full exhaust system included
Included 19mm Dell Orto carburetor provides optimal airflow to match the increase in engine performance
Throttle cable and all necessary gaskets included