Trust me ....... My son and I have had too many China bikes and they are cheaply made and not worth bringing home . The wiring is so hard and brittle any movement will break the copper wires inside and lose connection . The frames are welded Half A$$ed and not even all around the joint so the frames break at the welds when you ride them . The motors start on fire when the gas line gets soft and leaks fuel because it is not for fuel and oil mix . The disc brakes are of scrub brake quality in stopping power and distance to stop .
I feel if I have to rebuild the bike to ride it , I just as well build my own and have one to ride when I want to ride it .