
For most of cycling history, riders gauged their effort in steady-state events such as time trials, centuries, brevets and solo breakaways by their perceived exertion. Canny riders got really good at apportioning their energy for the length of the event. They quickly learned, by trial and error, how hard they could pedal and still have enough left to avoid slowing drastically in the final miles. It isn’t very difficult on a flat, windless course, but skilled riders learned how to dole out their effort on hills and into headwinds as well. We explain how to go the distance at top speed.