... 15KG metal throttle servo 4. alloy diff. gear set 5, 98% alloy parts Scale 1:51,Displacement 30 ... 8mm absorber (with cnc shock cavity)15,6V4500µA battery16,Renewable 9mm shaft17,2.4G 3 channel ... alloy head kit set30,CNC alloy F&R "A" arm set31,CNC alloy F&R thicker board32 ... Clutch spring for 8000r/min39,New style Hexagon clutch bell40,CNC alloy ball connector41,New throttle linkage set42,CNC alloy ...