Pretty funny, but seriously, these bicycle riders go FAST down the canyons. 45-50 mph. Some of the crazy ones, you gotta plan your pass, cause you're not going to just blast by them, it's more like passing another motorcycle. (And the straights average 200yds long, and almost always double-yellow with limited vision of what's coming.)
They've got balls to go that fast on 1" tyres on these roads wearing a spaghetti strainer on their head and full-body neon panty hose. Just yesterday, and, well, read the story.