Is there anywhere that you can find the difference in handling, ride, performance, nimbleness, etc., between the models? I have a pair of Sportsters, but they are not good for long distance. I will trade up for something, but I still like my handling. The Harley web site is no help at all. I would like something that handles well, nimble, rides well, and doesn't vibrate your teeth out at 70 mph, and will do well on the dragons tail.