My Super Record-equipped Raleigh has a six speed rear, 13-23, friction shifting, of course. Would this setup have any problems shifting a 7-speed freewheel if i decided to put on one there? The frame has actually already been spaced to 130mm one and is currently running the original hub, which I believe is 126, so I guess it's somewhat back to its original spacing. Would there be any problem threading a 7-speed freewheel onto the hub, assuming it's English or Italian?
Thanks in advance.
-S-