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Old 02-07-2016, 12:59 PM
Thread Starter
Join Date: Feb 2016
Posts: 1
Tire Choices and setup

Hey guys was wondering if i could get some opinions on my current situation im in right now

To start off im looking to finally be able to add some aftermarket tires and wheels to my 2013 2dr JK. AUTO I have 3.21 gears and frankly drive almost 500 miles a week back and forth to work. Because of this im looking to keep tire sizes right around 32". Keep in mind MPG while being important is going to come most of the time with a slight loss when adding slightly bigger tires. My biggest CONCERN is POWER LOSS.

The two tires ive narrowed it down to are:

255/75/17 Duratracs. 32. Diam 10 inch wide and weigh in right around 40 lbs.

- Basically they are exactly the same size as the STOCK SRA's i have right now except for a few pounds different.

275/70/17 Cooper At3's 32.2 Diam 11 Inch wide and weigh in right around 47 lbs.

Slightly bigger in width from the stock SRA's but WEIGH 10 more pounds.

My Dilemma: Both Tires i feel will suit my needs living in New England USA. They both have great ratings and reviews and fit what im looking to do. For right now my biggest worry is that will an extra 10 pounds of unsprung weight in the at3s make a difference in power loss? I feel the Duratracs will be fine but also keep in mind ill be going with aftermarket wheels so im hoping to save a few pounds on those as well.

Thoughts, Opinions? Anyone running a setup close to this with some truthful feedback? Appreciate any feedback

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Old 02-08-2016, 08:09 PM   #2
WarEagle_JK's Avatar
Join Date: Aug 2013
Location: Lexington
Posts: 224

Welcome to the forum! I wouldn't think you would notice any change in MPG over a 10 lb. difference per tire.

Now if you plan on modding your Jeep with new bumpers, winch, lights, etc., that stuff will all add up over time and then you will probably see a decline in MPG.

There's a ton of wisdom on here to be had and a lot of opinions too!

Maybe someone else can chime in that has real world experience with the issue you are concerned with.

I added a lift kit, steel front bumper, and winch before I switched tires so my MPG was shot by then.

The second mouse gets the cheese!
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Old 03-12-2016, 09:06 AM   #3
terpsmandan's Avatar
Join Date: Dec 2009
Location: Penn Yan, NY
Posts: 1,905
Saw this and decided to chime in. I am getting a set of AT3's 275/70/17 C. Weight is equal to the stock MTR's. I also had a set of AT3's on my TJ and liked them a lot. Thought that I might go with BFG All Terrains in the same size and then I read this article:

Where the Rubber Meets the Road | Expedition Portal

And it swayed me back to the Coopers. My $.02
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