Thanks for the advice,
I was wondering, do you really need an mountain-bike like spread of gearing (e.g. 42/32/22), or is there a benefit to having a 'road' gears for the large and medium, and a really small 'mountain' gear for the tough hills? Something like 52/40/20 on the front, with a normal range in the back (11-34).
What do you think? I was thinking you would use the '20' on the hills, but as soon as you hit something that is manageble make the leap to the '40'.
I'd like peoples opinion if this sort of jump in gearing would be detrimental for people on fully-loaded tourers through some hill-country?
Thanks!