Wheels and Tires - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 5 Old 08-15-2009, 01:57 PM Thread Starter
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Wheels and Tires

One of the many areas of automotive repair/maintenance/care that I know absolutely dick about - wheels and tires.

Educate me on this..

What Im wanting to learn is what is a good size tire to wheel ratio. That is, if you have 8" wheels, what is a max width tire to run on that? Or is there such a thing? Same goes for 9", 10" etc. Explain to me why one is a better choice than another (if applicable).

I'm gonna change up my tires (and possibly wheels) eventually - so I just wanna learn what I should know before I start looking.

I also suck at anything electronic - I mean anything. But we'll save that for another thread.



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post #2 of 5 Old 08-15-2009, 02:02 PM
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I'm decent with electronics so I can prob help better there. Someone posted somewhere that the ideal is 1/2 the wheel size for tire. so 15 for 30s 17s for 35s 20 for 40s something about overall side wall and if you run too small a wheel on a bigger tire then the sidewall can fold over itself etc and If too big a wheel and to small a tire not enough sidewall etc lol bad at explaining it but you get the point, or not, its posted somewhere just have to dig

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post #3 of 5 Old 08-15-2009, 02:11 PM Thread Starter
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yeah but Im taking the width of the wheel, not the diameter. 16x8, 16x9, 16x10 etc. I'm gonna run 36-38s regardless lol. Question is, will they be 12.50, 13.00, 13.50, 14.00, or 14.50.




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post #4 of 5 Old 08-15-2009, 02:13 PM
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ahhhhhh, not a clue

Well actually I think it matter b/c of tire width the wider the tire the wider the wheel needs to be as to not cause the sidewall to bow and the top to kinda "hang over" the wheel so the tire from teh back looks like this )( where the middle sucks in and the top bows out

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Current Mods:3.5 Rock Krawler Mid Arm,
Teraflex drag linkflip kit(thanks Rooster),
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post #5 of 5 Old 08-15-2009, 03:24 PM
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It's been discussd in length on this site and Pirate. A search will probably do you better justice. Width of the rim and tire are directly related to how stable/flexable the tire wheel combo will be.

The majority of crawlers will tell you narrow rim on wide tire. ie. 8" on 12.5
Their reasoning is the rim holds the tire on.

Guys that spend more time on the pavement will tell you no more then 2" smaller then the tire width. ie. 10" on a 12.5

I lean toward the the street guys, even on the trail, I've never had a balancing, rim damage, or tire dismounting issue. Everyone who walks up to my rig has always told me ot get narrower rims. (even as I pass them on the trail while they're reseating their tire)

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