Lyndon- Your wheel is too narrow-the only problem. You are only running on a portion of the tire, as it cannot sit flat, due to the narrow wheel width. I have found siping to be a very GOOD IDEA on my rigs. If you choose to buy wider rims, be very careful about weight ratings. Are your tires rated at 3415#'s--they should be! Not all 265-75-16's are...Make certain that the rims are similarly rated...ChuckD
ChuckD
What you say makes a lot of sense. That is exactly the way it feels, as if only part of the tire is on the road. Thank you so much for your reply.
Perkins:From a mechanical engineering point of view you are deforming the designed cross section envelope for the tire. The narrow rim squeezes the tire bead closer together making the tire unstable so that the tire tends to roll from side to side with any cross load. Cut out a 1 inch strip of heavy craft paper the size of the tire cross section, make it into a semi loop, and then move the ends from 8 inches apart to 6 inches apart and you will see the change in the profile. You should get your tire store to put the correct tire on your rims at no cost unless you asked for the 265's.
Perkins: I am sure you have much, much better drivability with the wider rims. You were almost rolling on your sidewalls. I hope everyone got an education from your experience.
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