Four bolt 30.5CC engine with walbro and NGK 40KG steering servo CNC 8MM shock Scale ... 1:51,Displacement 30.5cc 4 bolt engine(with NGK and walbro carb.),single cylinder,two stroke,air-cooled2 ... µA battery16,Renewable 9mm shaft17,2.4G 3 channel controller with LCD screen18,Normal tools repair bag19,Front & rear lean prevention nylon ...