A few buddies and I were recently salivating over ACA's Sierra-Cascades route (http://adventurecycling.org/routes/s...fm?pg=overview). Unfortunately, none of us can get away for 2 mo at a stretch. One month, however, would be fine.
So the question is: north in July or south in May?
I've read through a few crazyguy blogs. Both ends are pretty brutal, but to my mind the south, with it's heat, long stretches w/o services, isn't quite as attractive. Not sure my buddies agree.