810mm Rear Axle Kit + 125cc 4 Stroke Engine Motor Assembly for Go Kart Quad Bike

810mm Axle Kit. 125CC engine Motor. ENGINE SIZE 125CC. 1x 125cc engine. Bore x Stroke 52.4×55.5mm, 119.7mL. GEAR SYSTEM 3 FORWARD; NEUTRAL; REVERSE. 3 forward 1 reverse gear. Idle speed 1500 r/min±100r/min.

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