Get on a geared bike and put it in 52/13, that's the same gear inches (105.1). If that's how hard you want to push all the time, go for it. If you're like me and that's a gear you might hit up on a downhill or with a stiff tailwind, go for something more sane like 48/17. Tall gearing sucks around town, you can't accelerate fast enough to keep the cars behind you.