The 400CC ATV equipped with front and rear shaft drive , strong power, low speed, big tortion, special engine, adpoted four-wheel mechanism and is equipped with deep gear, low pressure vacuum tire, mechanical two-wheel drive/four-wheel drive shift system, high-technology digital meter, the engine adpoted the combination cooling system of wind cooling and oil cooling and it adpoted the advanced technology and device such as single-shaft gear shock and balance mechanism, transmission auxiliary clutch, reverse in machine