I did the Big Bear Trail Ride Enduro, up in Big Bear, California, about a month ago. The ride covered about 190 miles in one day, and I made it with just 2 gas stops. The first stop was about 85 miles into the ride. I hit reserve about 2 miles from that stop. The second gas stop was about 35 miles after that. (Very poor layout for gas stops). I put in about a gallon and finished the ride no problem.
The ride covered all types of riding, from paved roads, fire roads, single track, boulder hopping, and some water crossings.
I once did 90 miles on a tank of gas. I guess it all depends on how you ride. I definately don't take it easy when I ride, but I sure do get good gas mileage. :p :flame: