Just look at the weight from a picking it up perspective. Or even having to plant a foot and trying to hold it up to prevent having to pick it up. Lighter is better in these situations. I've nearly had a spill at a traffic light when my foot came down on something super slick. Its not just off road that has to worry about it. While I know I can personally pick up the ~430 lbs of the Zongshen, since I can heft the ~540 of my Vstrom 1000, It's still more than I'd like to deal with regularly. Even my DR that's just a bit under 400 lbs gets tiring quick. If you're mostly touring and not really getting into "falls likely" territory, I think this would be a good bike. But so would much larger and heavier ones. Given the weight of the RX3 and the likely small increases caused by adding a little bigger motor, I don't see why it can't be kept a bit closer to 400 lbs and well under that with bags and crash bars removed.