When I first got my B5, it took me an 8 hour day to put a hundred miles on it. Ride a few miles, take a break, ride a few miles, take another break. I devoted the better part of 2 weeks to getting 1000 miles on it, then things speeded up considerably. Close to 3000 now, and have not been above 60 for more than a few seconds at the time. 60 mph just feels right on this bike in top gear. Not lugging it or over revving it.
I have had many tell me that they would not buy an Enfield because they won't go fast enough without breaking down. By fast enough, they mean cruising all day at 80 mph. I have a bike that will do that easily, and if I actually need to, I will take it. But to me the Enfield is more about enjoying the ride than trying to get somewhere (or nowhere) fast. At 60 mph, I have found it to be a relaxing ride with just the right feel and sound.