Mav belt is the strongest belt on the market but let me tell you y its not the best choice for an ATV after having alot of bikes and trying alot of different belts with hi horsepower fully built machines that do nothing but mud and skeg riding.... The Maverick belt with its “heavy duty” build construction has very little stretch; like none! Of course any good belt has no stretch but it’s all relative. The Maverick belt has less than the stock belt. The Mav belt is heavy duty and people have been having good luck with it. But…because it has no stretch it shock loads components. On a heavy sxs it’s less noticeable but on an ATV that shock load over and over and over every time the belt engages is eventually going to wear on things. Diffs. Tranny. I run the stock belts now and so does everyone i ride with some guys pushing 115 RWHP on nitrous and i've never seen anyone break a belt or even smoke a belt ever in the worst of skeg conditions with the biggest of mud tires, just my inputget a mav belt and vfj's primary
Were you going slow in high gear?
If you WOT it from a standstill, what does the RPM go to? Does it hold it there?