I know it's a buttload of work, how many calories do you suppose we are using?
On a general level, say somebody like RC or Pastrana in a hard moto.
Or, on a general level, your average outta shape spud like me, racing in the back of the 125c for about 12 minutes (and ending up exhausted). How many calories are we burning?
For a 40 min moto, I guess about 400-600? For twelve minutes, maybe 100 or 200 if you really strain yourself. You won't get lean by riding, too intense.