Originally Posted by
substructure
Plus they're necks and backs are harnessed without much mobility, they drive 500 miles straight usually in 150F temps with limited breaks for water or to relieve themselves.
A few of these guys do mountain bike races when they're in town as well to stay in shape.
Fixed.
The truth is, this is a very physical sport. It's not quite physical in the way that bike racing is, but it is analogous. The same way that people say to us, "I ride my bike" and we chuckle to ourselves, these guy chuckle to themselves when someone says, "My cousin/brother-in-law/co-worker drives race cars."
Any sort of chemical 'speed' is not effective. It's just a good way to crash. Good endurance physical fitness and a ridiculously high heat tolerance is. Also, the ability to not lose focus and concentration is absolutely mandatory. Descending on a bike is difficult and nerve-wracking. That is similar to what they do for hours at a time.