I have a buddy who is on the weight-loss train. I've been talking up all the benefits of cycling that I've reaped in my time in the saddle and he went ahead and put down the Seattle-To-Portland as a stretch goal.
Now, he's pretty big nowadays. He still won't reveal his actual numbers but my un-educated, visual guess would be 450-550lbs.
So I wonder, whats the heaviest someone has been when they first hopped on the saddle? My main concern would be the bike being supportive enough and, in a close second, his physical well-being (knees and stuff).