Originally Posted by
AngryScientist
just because you are young and fit does not mean that directly translates into cycling ability, especially if you have some climbing to do over the course of the tour.
I disagree with this. I think as far as bicycle touring is concerned, determination is the most important thing. I think the OP's "lots of backpacking experience" will serve him well. Being young he'll condition quickly. Low bicycle gearing and packing light and he'll make it.