Okay, this is a stupid question which I’m sure if I thought about it long enough would be obvious.
If you’re riding (on road) a hilly route, assuming you have a fixed amount of energy to use up, is it faster to:
a)Ride at constant effort all the time
b)Ride hard up the hills, coast down the hills.
My instinct tells me that (b) is likely to be faster, because higher wind resistance means the extra effort on downhills is more wasted. But my brain is failing when I try to do the maths.
All ignoring the fact that I can tuck deeper without pedalling which on some hills means a faster overall speed – I managed more than 60km/h on a hill that I usually hit 55 on the other day, just by hammering it over the top, then tucking as it gets steep.
I think it might also depend on the profile of the route – what I really want is a tool that takes a load of variables like weight / power / frontal area etc., and the route profile for my route and then simulates it.