I don't have a ridiculous amount of miles (500-800ish?) on my 2020 RZR Turbo, but I haven't had a single issue with it (other than bending a control arm - not really it's fault.....) and those miles were all pretty rough trail riding. I do take care of it. It has scraped the top of the ROP from being driven almost completely on it's side and been over some extremely difficult terrain... I do keep a spare belt in the toolbox just in case though. I have actually never once had a belt issue on any of the 3 Polaris machine's I've owned.Admittedly one of them shredded because my wife was on the back and he was doing 60 or so on a connecting road and forgot to take it outta 4x4. Lol. Even two is a lot, but maybe that's normal for a 1000cc outlander, I'm not sure. His machine has more power than I could ever imagine, but it seems to also need a lot more work than the rest of ours does. Lol.