I had a 98 DR350SE and was looking for more power so i bought a new 650R and put a baja kit on it to make street legal. A world of difference between the 2 bikes! Believe me, the 650R is a heavier bike. Forget the dry weight of the bikes. I don't care what the specs say. Weigh the 2 and I can't see how the XR wouldn't be heavier. I'd never go back however. The 650 has damn near twice the power and requires a bit more attention in the tight stuff than your DR. If your good height wise you will like it. The XR will no doubt seem higher/heavier.