I have an E, street legal, and I want to do some dual sport riding. I won't burn up my sharp D756's on pavement, so I pass on those rides. How about a 2nd wheel set, mounted and ready to go? Wheels, tires, rotors, smaller sprocket- it's got to be cheaper than owning a second bike. Is there a better aftermarket wheel for dirt, keep the stock wheels for the lighter duty dual sport stuff? What are my options?