I was talking to my brother last night about a motorbike trip he did last year from Seattle to Laguna Seca for the AMA races. His group took the scenic route getting there, and wandered into the Sierra Nevadas for a day or so. He said they found a road that was 26% in places, and I couldn't help but wonder if anyone was crazy enough to ride a bike up it. I know L'Alp Duez is about 15-17% all the way, and that's crazy steep.
So what's the steepest climb you've ever done? Up or down?