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Old 01-14-2008, 06:19 PM   #1
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Tire size traction question

on SVT EAP wheels.. 49 offset

235,40-45,17 VS 225's

which will have better traction?

The answer would seem obvious.. but considering it is a 7" wheel I am not sure.


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Old 01-14-2008, 06:26 PM   #2
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I think its more of a question of would the 235s fit, at least without rolling the fenders. And I'm pretty sure that with any drop beyond SVT ride height they wouldn't work.
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Old 01-14-2008, 06:27 PM   #3
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I would not go any wider than 225's. The 235's may rub. Wider is not allways better. Besides I dont think you would be able to tell any traction difference between them.
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Old 01-14-2008, 06:41 PM   #4
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They will fit with EAPs even with a 2inch drop.

100% sure of this.
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Old 01-14-2008, 06:50 PM   #5
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If rubbing is not going to be an issue. Then I would go with the 235's for sure. I was worried about them rubbing. They would look pretty awsome under a Focus.
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Old 01-14-2008, 07:03 PM   #6
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225s will rub under hard turning even on stock suspension. Lower it and even the stockers will rub.
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Old 01-14-2008, 07:05 PM   #7
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Originally Posted by MVent View Post
225s will rub under hard turning even on stock suspension. Lower it and even the stockers will rub.
Your report is completely different than those who have actually used this wheel and tire combination.

My only concern is pinchinga 235 vs 225
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Old 01-14-2008, 07:23 PM   #8
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I'm lowered with a Koni kit with 42mm offset wheels, 215 wide tires (40 series though) and I have never rubbed even with the tires sticking out of the fenders that little bit. But it may be worthwhile to note that my suspension is also cranked down in race mode all the time. So I don't have any problems with rubbing.

Here's the deal though. I foresee nothing but problems with 235's. You need to do a lot of research before attempting it, because you will need to look at both outside clearance and inside clearance most likely. The extra traction you would get would also probably not be worth the downside of this which is a lot more rubber, a lot more inertia to overcome. One of my good friends though does have experience with this and may be able to provide some input on this topic though, and he went even a little more extreme than you. You may want to contact him for advice.

245/35/17 on OEM Rims
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Old 01-14-2008, 07:31 PM   #9
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Something to keep in mind is 235 tires are nearly an inch wider than 215s. Also, a 235/45 is likewise nearly in inch taller than a 215/40.

I think WD40 reported minor rubbing with his 225/45 RT615s on SVT springs with KYB-AGXs and stock-offset wheels. I know that when I was running 205/55 16s in the winter they rubbed a bit on the splash shields. I agree, nothing but trouble with a 235 tire.
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Old 01-14-2008, 07:59 PM   #10
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i would suggest the 225/45/17 out of the two options; my friend (not a member of this forrum) is running 225/45/17 on stock suspension, ill be running 225/45/17 next spring; however my 215/45/17 winter tires rub, but i have a 45mm offset wheel with them, m summer set will be on the stock 49mm offset wheel
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