I feel really odd here. I'm running big guns. 52 engagement rings with a 20 all the way down to 15 on three different bikes. I use Surly flip/flop hubs so one will be like the 16 and the other will be an 18 or a 20. I'm riding the 18 more right now to get my spin back, then in a couple weeks I'll be riding the hell out of those 16 and 15. I like to draft the posers, it irritates the hell out of them, specially when it's my turn to pull, and they see I'm grinding on one gear with no brake. I eat hills on these bikes, course the one hill that makes me wanna puke on a geared bike, I haven't even attempted on my fixies.