I'm interested in some opinions....I've got a 2015 Sportsman 570 EPS/EBS that I ride 100 hours and about 1200 miles per year. I ride it hard (dust, rocks, steep, cold and hot temperatures), but am diligent about routine maintenance. With past Polaris ATV Sportsmans, I started having mechanical issues around the 400 hour/3000-4000 mile marks. Opinions: When do expensive, major things start to fail with hard riding (engine valve clearances, belts, bearings, transmissions, differentials, etc)? Friends who ride Razors less aggressively seem to get 8000 to 9000 miles on them before things break.