I have an old schwinn beach cruiser I'm rebuilding. Would any springer type forks fit as long as tire size is correct? Or is their more to it then that? Thanks!
It is most likely a 1" tube dia.; after that you need enough tube length to be able to get the bearing/topcap/nut (stack height) on the top. You also get to choose between threaded and 'threadless'.
Other than that, you are good to go.