The rhino belt is narrower it could be used on a stock sheaved machine but if you have a machined sheave or plans to put one it would probably rub the cover and it might even hit the bearing protrusion on a stock sheave with some wear.Ok. But what is the deference. I have a brand new rhino belt in the box. But I sold it and bought a wolvie. I was just hoping the rhino belt wasn't wasted.