In 1981, a buddy and I rode our bikes from Chico California trying to go non stop to Denver, CO. We made it as far as Rabbitears Pass just out side of Steamboat Springs CO. It was about 2:00 A.M. when I dodged an animal in the road. I saw my buddies headlight bouncing up and down in the rear view mirror, and soon found out that the animal that he hit was a porcupine. Long story short, we stopped in the next town so he could clean his shorts, and spent the rest of the night on a bus depot bench, getting a little shut eye. . I do not know that exact mileage, but somewhere around 1100--1200 miles. I have since done a couple of 700 - 800 mile days, but in my old age, that will never happen again. 500 miles is about my max now days. I am leaving on a fast trip tomorrow in my truck, but will be switching off driving with the wife. Going from Denver, CO to Medina, Ohio -- 1340 miles and will not shut the truck off until we get there except to refuel. Will then immediately turn around pulling a trailer with a trike in it. Plan on two days to get back home. Not looking forward to the trip.