Originally Posted by
expatbrit
I already spend most of my time in the large chainring, but I think that on a 50/34 I'd be in the smaller ring MUCH more.
It really depends on how fast you're going and what cadence you choose to maintain. 16 mph or so is the cutoff for me (I think, I don't really have a cutoff but unless it's hilly or windy, I'm on the 50 ring for the most part) Slower than that and you can get along just fine in the 34 ring.