Originally Posted by
feetpower
why not get a fixed/fixed rear hub and do both?
We have a Winner!!!
48-15 is pretty tall; unless you're out on the Bonneville Salt Flats you won't need it or be able to take advantage of it.
I'd go 48-17 fixed with a 48-18 freewheel on the flipside(assuming you have brakes).
48-17 will get you 22mph at 100rpm. Over 26mph at 120rpm.