Originally Posted by Fox Farm
I used a 34 / 29 up Mt. Washington once and that was fine. Anything less and I would feel like I was moving faster in circles than forward.
I have this setup on one of my bikes and could not agree more. Rarely do I need the 29. For most of my longer climbs 0.5-1m 6%grad (long where I live), the 34/23 works perfectly well.