So I've been converting an old bike that I got on craigslist. It's a Schwinn Le Tour II from I believe 1976. I've got the original hub on the back and I wanted to know if it will fit a modern sprocket. Basically, I am worried that they changed the standard thread size at some point and if I buy a sprocket to go back there it won't fit.
I was thinking of getting something like this:
http://www.amazon.com/Surly-Track-Co.../dp/B000XQKHU4
I know this is probably a newbie question, but I would rather not waste money on parts I can't use.