besides the cool factor of having 17s. If I was to do it again on a dr350 I would just put some avon road riders on the stock rims and call it a day. The gs500 front rim will center up. But you will need a relocator bracket. the rear gs500 rim needs to be ground or machined down on the sprocket side. I used the gs500 rotor and caliper. and made an arm for it. If you take the wheel bearings out of the stock dr350 rear wheel they will go in the gs500 wheel and mate up. Use the dr350 spacer in between the bearings with a washer or two to take up the slack. I used washers for spacers front and back because I am cheap. good luck. great bikes.