Rings true for me too.
But at a sub-clinical level. Just because one is aware of using the bike to keep one's demons under control doesn't mean one is ocd as in the clinical sense.
A lot better than some other "self-medication" I could think of (gynnantonnyx, anyone?) like wot RnR said.
As a cancer survivor I really identify with Lance A. and see some of the emotional-psychological roots of his achievements. So what? You have to get through and over that stuff somehow.
I knew a guy who was born at 27 weeks gestation weighing 1 kg / 2 lbs. He reckoned that experience, coupled with his innate personality and frequent subsequent health problems and hospitalisations, meant he met everything aggressively. Of course *without* that personality he probably would have spat the pacifier while still in the incubator.
So it's both who you are *and* what's going on in your brain chemically and electrically.
Like the song says "You can't have one without the o-o-o-ther"