Originally Posted by
JohnDThompson
I'm 55 and do most of my miles on fixed gear (46 x 17). No big hills here; just a couple short, steep ones but I haven't had problems with my knees yet.
I'm about to be 44/16 from 48/16, which is a little higher GI than yours. I feel like 48/16 wasn't letting me spin enough, most of my commute to school is uphill, I hope it's alright.