Amazon.com: HaroldDol Bike Engine 49cc 50cc 2 Stroke Engine Motor Kit, 1.8kw 6 Teeth 25h Sprocket 2 Stroke Racing Engine Motor for Mini Pocket Dirt Bike ATV/Scooter Pull Start : Automotive
2 Stroke 49CC 47CC 50CC High Performance Engine Motor Complete Racing Engine Motor for Pocket Dirt Quad ATV Mini Pit bike USA STOCK (Style 1)