RUNFAST TM 2-stroke 48cc/49cc/50cc Motorized Bike ENGINE ONLY FOR MOTORIZED BICYCLE

RUNFAST TM 2-stroke 48cc Motorized Bike ENGINE ONLY FOR MOTORIZED BICYCLES   BENEFITS OF THE RUNFAST TM 2-stroke 48cc Motorized Bike ENGINE ONLY FOR MOTORIZED BICYCLES: -ENGINES ARE ASSEMBLED IN THE USA FOR ENHANCED INSPECTION AND QUALITY ASSURANCE. -HUGE 40mm INTAKE FOR MONSTER GAS/AIR FLOW -WIDER 40mm FRONT MOUNT FOR EASIER FITTING! -SUPER RUGGED THICK 8mm FRONT AND REAR MOUNTING STUDS! -UPGRADED MEGA MAGNET ROTOR MUCH STRONGER THAN STANDARD ENGINES FOR EXTREME PERFORMANCE! -FANTASTIC FUEL MILEAGE OF 100 MPG -SIMPLE PEDAL, POP THE CLUTCH, TURN THE THROTTLE, AND GO STARTING ACTION. -PEDDLE/MOTORIZE ANYTIME YOU WANT. -MEGA HOT MOTORIZED BIKE SPARK PLUG MOTOR MOUNTING COMPONENTS AND HARDWARE   WHY RUNFAST IS THE HIGHEST QUALITY MOTORIZED BIKE ENGINE IN THE WORLD Heavier, stronger magnet rotor for more power!  Other cheap bike engines use weaker, less powerful magnet rotors.  Feel the difference!   Thicker, stronger, longer, stronger magneto cable wires for improved power transfer and b