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Tires-wieght-power?

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Old 12-11-2009 | 03:53 AM
  #1  
blackpanther's Avatar
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Default Tires-wieght-power?

I read quite a few posts about bigger tires = less power more gas consumption.
I am trying to figure out what tires to buy.
My question??? I
s it the size or the wieght that affects the Jeep
Example
A goodyear duratrac in a 285 70 17 is a 33" weight is 53 lbs.
A goodyear Mtr/kevlar in a 275 65 18 is a 32" weight is 56 lbs.
Are they more or less the same???
Old 12-11-2009 | 02:21 PM
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I too am concerned about tire weight. I am looking into get a 33 in tire and would like to get one that is light weight and durable. I was hoping bumping this to the top would generate responses.
Old 12-11-2009 | 03:19 PM
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The size width and height affect clearance.

The weight will affect your braking, MPG and axle load.

The stock 32" Bridgestones weigh 42 lbs and you are only talking about going to 33s that weigh ~53 lbs.

You should have minimal to small clearance problems with either which may require spacers.

Most of the tire weight discussion hinges around heavy 35"-37" tires, such as the beefy Toyo 37x13.5 MTs that weigh 93 lbs.
That is more than a doubling of weight so the impact will be noticeable.
Yet several members roll around on these tires on their dd, so it is highly dependent on driver needs and tolerance for change and risk.

From a weight perspective 10-12 lbs is a modest weight increase, so its impact will be modest (not very noticeable). You will notice the difference in traction and ride more.

In general, I would not be concerned with the tires you are considering.

Given your concerns those Goodyear's would be a good choice.
Old 12-11-2009 | 03:26 PM
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IMO weight has as much of an effect as height does.

I had some 33" Nitto all terrains on my Dodge 3500 they were replaced with some 33" Toyo M/Ts. The Toyos weigh about 30lbs per tire more than the Nittos. Even having 610lb-ft of torque I can feel a noticeable difference in how the truck drives.

The extra weight effects the braking as well. You gotta get all that extra mass rolling,and then you gotta get it stopped as well. A lot of guys don't think about the braking aspect.
Old 12-11-2009 | 03:27 PM
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Originally Posted by bamjp1
I too am concerned about tire weight. I am looking into get a 33 in tire and would like to get one that is light weight and durable. I was hoping bumping this to the top would generate responses.
Light weight and durable don't usually go hand in hand.




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