I guess I've been lucky in that we have gone over 2 years with our Polaris 9300xi without a broken wheel. Well, our luck ran out last week. One of the rear wheels broke off.
I ordered 2 spare rear wheels and received them yesterday. I had seen the Youtube video of the guy reinforcing the wheels with Marine Epoxy. So, I have purchased some along with the curved tip syringes to apply it around the wheel hub.
When I looked at the new wheels, I noticed that Polaris has upgraded them. There are now 8 reinforcing pieces all around the hub which provide more plastic between the wheel and axle. I guess enough people complained, and Polaris took some action.
Even with the upgraded wheels, I still plan to apply the epoxy.