Originally Posted by jpr1968
Wax on a tire, no matter where is not a good idea. Same thing as not using any tire shine products on the tires.
I've got over 30k miles on my bike and have been using interior vinyl dressing on the sidewalls for as long. It won't hurt a thing as long as you are careful to keep it off the tread. I always wet a rag with the dressing, wipe down the sidewall, then take a completely dry rag and "buff" it to a nice sheen.