Doesnt to "60" part of the specs indicate sidewall height? If thats the case then the only difference is the width of the tread . . 265 mm verses 285 mm. or have I got that wrong?The OP asked about 265/60/18 vs 285/60/18
Of those two, the 285/60/18 is the better sand alternative with taller sidewalls.
As others have said that is a ratio not the height per se.
Welcome to the forum mate. It is good to see a new member that follows up on the thread. Many new members ask a question and are never seen again. It is a great forum, though often hard to get an answer that specifically relates to your question LOL.Thank you for all the information really appreciate everyone that answered