- Do my bike's brakes absorb more energy if I allow my bike to accelerate downhill more between brake applications?
I ride gravel bikes on steep mountain roads and on the way down I have to ride the brakes pretty hard. I want to minimize brake heat so I have always thought that keeping the bike's velocity lower on average by applying the brakes more often will reduce the amount of energy the brakes will have to dissipate. I believe this because of the "velocity squared" in the energy formula. But it also seems that the bike and I have a certain amount of potential energy that will be transformed into kinetic energy going downhill and then transformed into brake heat and the velocity of the bike shouldn't matter. Which is it?