No problem at all. It's a direct swap. No cons that I've come across, but I've heard about water stains on the rims because there's no clear coat. I used Rejex soil barrier on mine and I've haven't had a problem, make sure you follow the instructions. I've noticed my bike rides a little smoother with the cast rims and radial tires and also you can plug a leak in an a emergency because they don't have tubes.....a big plus! If you want to polish them, do it before you mount them. It maskes it much easier. I used Nevr-Dull wadding along with the Mother's polishing ball mini.