The extra wheels also mean a much smoother ride and safer handling in the event of a blowout. It is also easier to find replacements for larger tires, though you should never use automobile tires on a trailer. Painted trailers vs. Galvanized trailers Many manufacturers offer a choice of galvanized steel or painted steel trailers. The painted trailers are fine for freshwater, but are vulnerable to corrosion in salt water. Galvanized trailers cost slightly more, but require less maintenance, especially if they will be dunked in salt water.
Galvanized trailers offer the most durability in the salt water environment.
Trailer tires are often much harder to purchase from tire stores, and it is often much harder to get service for a stranded trailer. Carrying a spare tire will almost always save you trouble if you get a flat. They're relatively inexpensive, and should be considered, even if not required, especially if you're towing after dark. Lights commonly required include sidelights, taillights, stop lights and turn signals. Safety Chains - Safety trains connect the tongue of the trailer to the towing hitch.