Yeah - pro cyclists are in shape - though I think motocross racers are said to be the most physically fit athletes second only to soccer players.
If you've ever seen a moto race, you figure out real fast why those guys are ranked where they are.
As for cycling, that's one sport that demands you be in shape
before you get the full-on race bike. These days there are weight limits on certain carbon frames I've seen. Hence: if you're too fat, you run the risk of breaking the bike.
Oh, and there are women who dig shaved legs -- on guys.