I have a chance to get a 1970-80 SR bicycle for the cost of shipping. I this point I have few details about it. Except its has a Cr-mo steel frame and Shimano 600 group. I have tried to find out something on line about SR but I have only found the few threads here at C&V, some of them a little dated. I know they made a Pro, semi-Pro, Maxima and others. Does anyone have an idea of what SR's model line up was. What should I be looking for on the labels as far a good frame. Any pics of SR bikes before and after rebuild would be nice.

Its probably a pretty good bicycle shimano 600 was pretty good stuff. Also I read another thread a while back and I think the semi-pro came with 600. I would definitely get the bike if I had the chance.