I've only replaced one belt at 1800 miles on my commander and it was my fault. I knew better and my foot hit the skinny pedal when it should have been on the brake. Lol! And I just smoked the belt , might have been run able but I changed it. But that's the first belt I have had to change in ownership of 3 SXS,s with over 6100 miles on them. Not including 2 atvs with about the same miles.