Originally Posted by
genejockey
Yeah, funny how that works, innit? You gain a couple mph on the tailwind side, but lose at least twice that on the headwind side. I think I've seen a maximum 3-5 mph boost with a tailwind vs about a 5-10 mph loss in the other direction.
Even worse is heading into the wind for a long stretch so you can turn around and get the push home, but then realizing the ride into the headwind was mostly downhill, and the ride back with the push is mostly uphill.