+1, currently running 48-17 and 48-15.
I rarely flip to the 48-15. I regularly ride downtown with my GF and flip to the 15 because its a flat residential ride. 48-17 is manageable for most of the hills here in ATL.
Originally Posted by
bbattle
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.