The leader in variable speed belt technology. Choose Ultimax ATV to deliver maximum drive performance.Extensive research and development assures that every Ultimax ATV belt provides durable, aggressive operation. Each belt is crafted from only the best rubber compounds and tough Aramax cord. The belts enhance the efficiency of the variable speed drive system. Ultimax ATV eliminates excessive friction and tension preventing drive damage. Exacting belt length tolerance minimizes system wear and avoids slippage. The best aftermarket belt in the industry is backed by the best warranty. Should your Ultimax ATV belt fail within two years of the purchase date, Carlstar will provide you with a new belt.