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Old August 6th, 2011, 11:49 PM   #1
Catnip 0_o
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Default Newbie looking for answers to rims for TJ

Hello all, I currently own a 02 wrangler and plan to put some new offset rims on it soon. However despite my excitement to get these on Im a little confused on how this all works. These might seems like dumb questions but I am still learning and hope that you can bear with me.

As of now my jeep sits on stock rims that are 15x7, I would like to get myself some offset rims but most of them are 15x8+. So if I were to purchase these instead of say 16" rims would my 31x10.50 tires still fit them or no? Also the larger the rim say 15x7 to 15x10 does it make a difference in driving or acceleration? Also is there a limit you can go up to with offset on a tj?

Thank you!

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Old August 7th, 2011, 01:18 PM   #2
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what is the complete tire size? 31x10.50 r15?

You generally dont want a rim wider than your tire, a 10 inch wide rim on a 31x10.50 would probably be too wide for the tire.... 15x8 or 15x7 would both work on a 31x10.50

But if your tire is a 15 inch you need a 15 inch rim

I run 16x8 inch rims with 4 inches of backspacing (the mount is in the center of the of the rim exactly) i have 33x12.5r16 tires tho
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Old August 7th, 2011, 02:40 PM   #3
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on your 15x7 wheel, 15 is the diameter (in inches) of the wheel and corresponds to the hole size (diameter) in the tire. so if your tire has a 15" hole, you can't put a 16" peg (wheel) in the middle.

the 7 is the width (from bead to bead, where the tire seats, NOT the outside width of the wheel). the "overall" width of a wheel is usually about 3/4" - 1" wider than the "advertised" width from the bead. a "general rule of thumb" is to stay 2" narrower than your tire for rim width. ie., if you're running a 10.5" wide tire, you want an 8" wheel. 12.5" wide and you move up to 10" wide, although a lot of people (myself included) run 12.5" -wide tires on 8" wheels. 12" wide wheels are somewhat passe for a stock Jeep even if running wide tires becasue they put a LOT of extra stress on the wheel bearing and balljoints leading to premature wear (and failure).



generally speaking, aluminum wheels are significantly lighter than steel wheels. although you might not think 15-20 lb. per wheel makes a difference, especially on a 4cyl, you can tell the difference if you've spent any amount of time driving it.

the next think you need to think of is backspacing. this is the distance from the back of the wheel to the face where the wheel sticks out. A backspacing of 0 would mean the the back of the wheel is in the same place as the face of the axle, and the whole wheel sticks out.

factory TJs have approx. 5.5" of backspacing on an 8" wheel. MOST aftermarket wheels are in the 4.75" to 4" range for backspacing.
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Old August 8th, 2011, 12:50 PM   #4
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Thank you both very much I now understand! :D I plan on getting these and if im correct it should fit just perfect.

http://www.mickeythompsontires.com/w...e=15x8&type=LT

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Old August 9th, 2011, 09:04 PM   #5
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A 15x8 rim would be a great choice for a 31x10.50r15.. just make sure the bolt pattern is the correct one for your jeep
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