Quote Originally Posted by noel View Post
But isn't it just the same? Unless you're out of the saddle, you're just turning the pedals the same when you're doing a long hill as when you're chasing down a breakaway on the flat. It's all about power output (in watts - thanks MrB). Why would a rider have a higher power output when at 12% than on the flat?
Drugs? Or maybe the question isn't realistic, would two people of identical height/weight/power perform differently?