Originally Posted by
mc510
I've actually never even considered running anything less than max pressure on theory that "more is better" (at reducing rolling resistance), so this is very interesting! Do you run lower pressure primarily for ride comfort?
It turns out that the steel drum tests done in the 1980s that led to the "more pressure = less rolling resistance" mantra ignored a big source of energy loss -- vibrations in the rider's body. Quite a few watts can be lost by jiggling around on hard overinflated tires, so letting a little air out is not only more comfortable, but can get you to your destination feeling less spent.
