LT 16" tires are a good idea but not always required with towables 10K# or lighter. My 32' rig comes in at 10K# fully loaded but most times is around 9K and our set of 15" Maxxis ST tires are delivering great service with no blowouts or even flats these last 4 years and over 20K miles. They are the best ST tires currently available and have a good reputation here on the forum. I purchased mine from DiscountTireDirect.com (local tire dealer didn't have them & tried to sell me their brand) and they were delivered to my front door via UPS in 3 days shipping included. Took them over to the nearset Discount Tire and had them balanced, installed, and warrantied.
