My Ural is one of the fuel injected versions, and it's done an indicated 73, level road, with passenger. Did not red-line, felt there was a little more, but the front tire seemed a little light, so I backed off. Thoughts of blowing that airhead make me want to not over stress the motor, so I usually don't exceed 55. On the K75S I've run 120 without bags. I suspect TimTylers aero with big bags would definitely result in a slower number.