Question 285/75r16 HEIGHT on 16x10 vs 16x7 [Archive] - Toyota Tundra Forums : Tundra Solutions Forum

: Question 285/75r16 HEIGHT on 16x10 vs 16x7



YOTAtoy
09-07-2011, 12:58 PM
Hey guys kind of a strange question, I came across while doing some tire research. I am looking at buying a set of 285/75r16 that are mounted on 16x10 rim. Now from what I understand is a 16x10 is NOT ideal for a 285 tire due to WIDTH, it is better suited for an 8" rim, however MANY people run a 10" rim with 285's.

Back to my original question, is the HEIGHT of the tire affected based on the width of the rim

for example if you have a thinner rim with a wider tire it will tend to "hourglass" out, somewhat changing the shape of the tire and possibly affecting the height (taller or shorter I am not sure, but I would think shorter)

whereas a rim width that is closer suited to the tire width will still have a slight "hourglass" appearance but not as dramatic and be closer to straight up and down. I would think with this one the sidewalls will have less bend in them and therefor greater height.

But then again my thinking on both of these is without weight on the tire, maybe once you put weight on the tire on a wider rim it bulges anyways and can bulge more because of the wider rim where as the thinner rim is already closer to its max bulge?

I am assuming that either way the height of the tire wont be affected GREATLY, however I can see the potential for minute height changes, and am interested in figuring out the theory behind it.

Either way, should be a good discussion....

Cheers :beer:

Blender
09-16-2011, 06:34 PM
It doesn't really answer the question, but i found a note on section width:


>> Section width varies approximately 0.2" (5mm) for every 0.5" change in rim width.

Mud-Terrain T/A KM2 | BFGoodrich Tires (http://www.bfgoodrichtires.com/tire-selector/name/mud-terrain-t-a-km2-tires) scroll all the way down.

Kuntryboy
09-18-2011, 11:32 AM
i wouldnt do it. you'll most likely get the "balloon look" which imo looks god awful. it will make the 285 a tad bit shorter as well. you can run that size on your stock wheels. i ran a 305 tire on stock wheels on my old 4runner (33x12.5) and it looked fine. but if you want new wheels find an 8 to 9'' width wheel