Originally Posted by dutret
A week or so. If you feel like you are having to push too hard up hills gear back down. In the long term improving your ability to spin will make you a better cyclist then improving your strength some. It also is much less likely to injure you.
link? this is something I have hypothesized for years.
WC = Walnut Creek; subtle reference to RBW, RR#39. Very unscientific observation of a potential flywheel effect.