... diff. gear set 5, 98% alloy parts Scale 1:51,Displacement 30.5cc 4 bolt engine(with NGK and walbro carb.),single ... cylinder,two stroke,air-cooled2,Torque :3.7N.M/10000rpm (+2mm crankshaft)3,Power:3.8K. ... cavity)15,6V4500µA battery16,Renewable 9mm shaft17,2.4G 3 channel controller with LCD screen18,Normal tools repair bag19,Front & rear lean prevention ...