When thinking a quality belt, think EPI. EPI has 30 + years of real-world manufacturing and engineering of belt. EPI takes a unique approach of testing their belts in a real-world riding environment to ensure their belts meets the requirements of our customers. If you are experiencing a loss of performance, see cracks when you bend the belt backward, or the belt sides have a glazed look, it could be time for a replacement. Severe duty drive belts are an EPI exclusive product that was constructed from aramid fiber and a heavy-duty rubber compound to give you the flexibility and durability you need for heavy lifting and assertive riding. These drive belts were made to fit the specifications of your vehicle for a perfect fit every time.