Check this out. Three riders (yes only three) winning a 24 HOUR motorcycle endurance race at Magny Cours in France. As a former motorcycle endurance racer I can tell you that 8 hours of riding at one event at that level of speed is insane. 2-3 hours is hard enough. And Magny Cours is not exactly a simple track. Not only do you have to be in phenomenal shape, but your mental focus endurance has to be phenomenal as well, let alone your riding skills. That is racing insaneness up there with the likes of the Isle of Man TT.



http://www.youtube.com/watch?v=lPbXc3cu79E

Apparently they used to do it with only two riders but stopped that due to safety concerns. Uhh... yeah...

Check out the gravity feed refueling rig at 2:50. I used one myself a few seasons ago. They really are that fast, about 5 gallons in 4 seconds. The quick change tire equipment is also pretty trick but it is expensive. We did it the hard way.