Originally Posted by
dedhed
As someone in the comments in that post noted, rearranging the order of the orbital washers on the brake pads is all that is really needed to make the swap. I haven’t run across too many bikes from the 70s but 80s bikes come in quite commonly to my co-ops. I don’t measure the brake post spacing but I’ve never had a problem on a referb if the cantilevers need changing. If the arms seem to splayed out, I just swap the washers around.
It’s really not that much of an issue.