I go slow up hills on the way to work to avoid sweating. I have been known to seek out hills at other times
Originally Posted by
spivonious
A 4.9% grade is only about 3 degrees above flat. Are you sure those numbers are right? I have some minor hills on my route and they are about 20 degrees above flat, which Wikipedia tells me is about a 35% grade.
I find that anything above 20% is nearly impossible to ride on a bike, are you sure about that number?