I have a grizzly and just put a new belt on at 7000 miles and probably would have gone another 2000+ but was recommended. I have no experience with the rhino but have always heard that Yamaha has the best belt system there is and was the first. The only draw back to mine is gas use but it is a 660. I would buy a Yamaha before a Polaris. What I have seen out of the Polaris has not been good.