I currently run a 235-75R-15 carlisle tire, and am wanting to got to a 16" tire/wheel. I am looking to do this for a couple reasons, (1) a little more height to get my trailer closer to level, and (2) less RPM= less heat...I think. Does anyone know of a good place that ships reasonable, or is close to 43526 to get a set of 5 tire wheel combo's. Also, what is a good 16" E rated tire? I haven't had any issues with Carlisle, but am open to suggestions...Thanks...-Joshua