Model NO.:OO-GG01A Product name:Gasoline go-kart with good performance Engine: two strokes, one cylinder ,49cc Starter system:manual starter Brake and throttle trigger on the steering wheel Chain driven Wheel:Four 9-inch pneumatic tires Rear disc brake Max speed: 40mph Max Loading:120kgs Oil tank:1.2L G.W/N.W:32/30KGS 20FCL:90PCS 40FCL:186PCS 40HQ: 218PCS Unique feature:can adjust seat front and back easily,all parts is metal(very hard)