I bought a 1970 Commando S in about 1974 when I was young and poor. It has always pulled slightly to the left. If I leaned to the right, I could overcome it enough that I could take my hands off the handlebars, but clearly that is not right. I also recall the top mounts on the isolastic seemed to be un-centered when I had the engine out. I would like to put this bike back in service, but fixed. Can anybody comment on the likelihood of the frame being bent? Is there a way for me to measure it to be sure? If bent, can it be straightened? IF so, where? Close to Mich would be great.