[phillyg]

WRT wheel width, first check with a reputable shop to see if the Sailun can be mounted on a 6" rim. If so, you wouldn't have to change out your wheels since the Sailun only has to be aired to 80psi to carry 3420lbs (see their load table chart.) OTOH, you'll want to be careful as someone else could unknowingly put the max psi, 110, in the tires.