I read somewhere that one way of checking a frame's alignment is to string a string from one rear dropout, around the headtube, then back to other rear dropout. Then measure distances from string to seat tube...they should be the same on each side.
Isn't this method as I described incorrect because it doesn't take into account an offset of the right chainstay that provides freewheel space? If you took offset into account, would this method then be OK? How would one calculate the offset based upon dropout spacing?
Jack Romans
Sacramento, California