Fuel weight and performance
Maybe this doesn't go under "Rider Improvement...", but maybe it does. How often do street/canyon riders think about how fuel levels impact performance and handling? MotoGP riders do think about it, and plan for the impact weight has on cornering and tire wear. As a canyon rider, I don't think about it...I just ride. But sometimes - when my fuel is down to a half tank or less - I wonder if I'm attributing my easier turn-in and overall "skill" level to the fact that my bike weighs about 12 pounds less than it did when I began the ride.
Anybody (not racers/track riders) think about this in the routine scheme of things?