Hi all, I was wondering if some one could help me I.D. a detachable backrest for me. I was told it came off a '06 Fat boy, but it looks like it might be off a wide tire model- like a '07. It is 11 1/4" wide across the fender. Can anyone supply me the width of a pre fat tire model or the width of a wide tire (200mm) model? Much appreciated, John