Has anyone found a GOOD LONG LASTING front tire? I would like to get a car tire, but can't. Seems the rubber people seem to think that "trikers" have more money that anyone. I've tried the first gen Cobra trike tie with little improved mileage. I have the "New and Improved" Cobra to put on before a 5000 mile trek. Does any one make a larger diameter wheel that will accept a car tire?