Basically bought a new bmx frame and when setting chain tension, I realised that if the wheel was centred in the chain stay, when I turned the bike the right way, the wheel was way off in the seat stay!? I cannot get the wheel straight between the two stays no matter how hard I try, is this a sign my BRAND NEW frame's seat or chain stay is bent? If so, what can I do about it? Is it a dud?