I have a 1977 Glastron 17' boat with a 115hp outboard. It is presently being towed on an (I'm assuming) original single axle Murray trailer. I need to replace some badly cupped tires, and am not sure which way to go. It has 20.5x8-10 tires on it right now. I need to tow it at highway speeds for about 10 hours in the future, so I need a good highway tire.
Any suggestions?
Any suggestions?