We all know the extra attention needed when moveing up in wheel/Tire size. My question which I dont see mentioned alot on Jeeps is wheel/Tire weight..I come from street/strip race cars and weight on the wheels/tires plays a big role in performance..So what I am getting at is if I research and find a 35 wheel/tire combo that weighs the same or slightly more than my current set up why would I need all the extra upgrades? I know the gears are a must but other than that I am not sure? I have seen 33x12.5 wheel tire combos weigh in actually heavier than some 35x12.5 tire wheel combos? The rims I am looking at are 21lbs each my current rims are 24.5 lbs so right off the bat I am saving 3.5lbs per corner. Tires I have researched and have seen weight from 64lbs to 77 lbs that is a huge difference. so if research and can come up with a light weight combo I see no big issues at all as the stress would remain the same? Am I missing something? Always looking to learn. BTW this is a great forum with alot of great guys with vast knowledge. I belong to several Car forums, Vettes, Vipers, Porsches and I see alot af real Douchbags, This is a great forum... Thanks.
The taller tire will play havoc with stock brakes so be ready to upgrade the brakes at the same time. See Mr. Blain about some new Black Magic brakes and the correct rotors and you should be good to go.
My Jeep is NOT an suv and Your suv is NOT a Jeep
Some people care, some don't. there was a four wheeler article about weight and on road performance awhile back. They tested a heavy steel bead lockwheel on the heaviest tire they could find, the general grabber competition tires vs some alloy wheel and a very light good year duratrac. Iirc they saw a definite mileage increase, decreased stopping distance, better acceleration, etc with the light setup, but that the heavy set up was nearly bomb proof and good for primarily off road rigs. I run a set of alloys and duratracs myself
It's not just a matter of mass (weight, if you prefer), it's also a matter of the tire diameter and multiplication of force because of the increase in diameter.
That is definitely a huge factor however rotating mass should be considered. My jeep with 33" duratracs and 4.56s will be "peppier" than if I put on a set of 17" steel beadlocks and 33" General Grabber Competition reds or the like. But I agree, gearing is huge.