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Old 10-18-2011, 09:10 PM   #1
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Stock Tires on Aftermarket Rims

I want to upgrade my rims, but keep my tires. What size rims do I need to push my factory tires out to the edge of the fender wells? I have the 255x75x17 tires. The reason is just to go with some nicer looking black rims.
THanks,
TH

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Old 10-18-2011, 09:31 PM   #2
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I'm no expert, but at least 4.5" of BS seems to be a good number on an 8.5" wheel. There are quite a few "show me your tire and wheels" threads in this forum to weed thru for pics and ideas.

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Old 10-19-2011, 06:22 AM   #3
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This has probably been explained ten thousand times, but do I understand this right? The less back space, the farther the outside edge will be away from the hub? The more offset, the closer it gets to the hub? I understand that back space and offset are related, but how?
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Old 10-19-2011, 07:47 AM   #4
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Backspace is how far from the inside mounting edge of the wheel the hub is. Offset is how far from the center line of the wheel the hub is.
You are correct that less bs= farther from the tub. +offset moves a wheel in, - moves it out (iirc, but it may be the opposite, I forget)
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Old 10-19-2011, 09:38 AM   #5
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The offset of a wheel is what locates the tire and wheel assembly in relation to the suspension. More specifically, it is the measured distance between the hub mounting surface and the center line of the rim. Below is an explanation of the various types of offsets which are pictured in the above graphic.

Positive Offset


A positive offset occurs when the hub mounting surface is on the street side (the side you see) of the center line of the rim. Most factory rims will have this type of offset.

Zero Offset


When the hub mounting surface is centered within the rim, it is known as a zero offset.

Negative Offset


If the hub mounting surface is on the brake side of the center line of the rim, it is considered a negative offset or “deep dish”.Note that extensive negative offset can potentially cause increased steering wheel kick-back and place additional stresses on the vehicle's entire suspension.
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Old 10-19-2011, 02:34 PM   #6
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Will this rim work?


17x9 Moto Metal Black 951

5x5 (127mm)


-12mm Offset


4.53" Backspacing



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Old 10-19-2011, 03:33 PM   #7
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I thought about doing this too, but figure it will look better if I replace the rims and tires. That way I can get smaller rims and larger tires.

Curious how this will look though. Definitely post some pics when you get this done.

Does yours currently have the upgraded 17" wheels?
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Old 10-19-2011, 03:40 PM   #8
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Yes, mine has the 17 inch upgrade wheels. I'm thinking about going all new rims and tires, and selling the factory set. I bought the jeep three weeks ago.
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Old 10-19-2011, 03:49 PM   #9
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Yes, mine has the 17 inch upgrade wheels. I'm thinking about going all new rims and tires, and selling the factory set. I bought the jeep three weeks ago.
Same here, bought mine 2 weeks ago. My wife wants to kill me for getting the upgraded wheels and wanting to replace them right away...

I thought about doing the rims now and tires in a few months, but then I would have to get larger rims to fit the stock tires. Seems like what most here do is get 15" rims and larger tires. I'm not sure if this is mostly just for looks, or if they perform better? I do like a lot of the pics I've seen with this config.
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Old 10-19-2011, 04:12 PM   #10
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Mine is a daily driver, so to prevent a lot of the "softness" and lack of highway performance that larger tires with smaller rims have, I would rather go with a safer setup. Not that 15s with larger tires are unsafe, but 17 inch rims with 285/65/17 tires will perform better at 70 mph than 15 inchers.
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Old 10-19-2011, 05:54 PM   #11
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Quote:
Originally Posted by thatch View Post
Will this rim work?


17x9 Moto Metal Black 951

5x5 (127mm)


-12mm Offset


4.53" Backspacing
Yes. It will fit fine.
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Old 10-19-2011, 06:52 PM   #12
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Same here, bought mine 2 weeks ago. My wife wants to kill me for getting the upgraded wheels and wanting to replace them right away...

I thought about doing the rims now and tires in a few months, but then I would have to get larger rims to fit the stock tires. Seems like what most here do is get 15" rims and larger tires. I'm not sure if this is mostly just for looks, or if they perform better? I do like a lot of the pics I've seen with this config.
I'm in the same boat w/ my JKU, and I considered using the oem bfg km's on an 8.5" black wheel which would only cost me $800 to do. Now I've decided to go with a 17x9 wheel and duratrac 34" tires. The tires add add an addt'l $1300, but I will be able to make some of that back by selling the oems complete less tpms.
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Old 10-20-2011, 08:29 AM   #13
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Originally Posted by devicemanager View Post
I'm in the same boat w/ my JKU, and I considered using the oem bfg km's on an 8.5" black wheel which would only cost me $800 to do. Now I've decided to go with a 17x9 wheel and duratrac 34" tires. The tires add add an addt'l $1300, but I will be able to make some of that back by selling the oems complete less tpms.
Join treadlightly and get the $100 GY rebate too...
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Old 10-20-2011, 08:45 AM   #14
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Join treadlightly and get the $100 GY rebate too...
Excellent advice - I joined on Monday and hope to receive my packet next week.
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Old 10-31-2011, 08:30 AM   #15
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Decided to go with Nitto Grappler 285/70/17 instead of the factory 255/75/17. 255s were not recommended to go on 9 inch rims.

BEFORE





AFTER

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Old 10-31-2011, 01:08 PM   #16
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Wow! Looks GREAT!

It's amazing what a difference wheels make. I can't wait to get mine. Probably have to wait until spring though.

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