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11-07-2007, 03:56 PM | #1 |
Scooby Specialist
Member#: 161666
Join Date: Oct 2007
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SCIC
Location: Ventura, Ca
Vehicle:2005 STI CGM |
Wider = Better?
I am getting some new wheels they are gonna be rotas (not sure what model yet) and I have decided on either 18x7.5 or 18x8, What offset should I run? I know that a wider tire gives you more surface area and that equals more grip, what I was wondering is should I go 245's in rear? How wide can I go on a 7.5" wheel? What size tires should I go in front? The same? Thanks.
-Justin
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11-07-2007, 04:21 PM | #2 |
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Vehicle:'12 Outback 2.5i |
when I shopped for my wheels at tirerack.com they have a range of what you can use.
I would use same size tires for both front and rear. |
11-07-2007, 04:31 PM | #3 |
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Offset on ROTA's seems to be around +48 normally, which is fine. On 18x8 wheels, you can run 235/40/18 without any problems, even 245/40/18 will work but is close to the "fender rolling" size....this is the exact setup I have on my ROTA's with tires (which are for sale by the way if you're interested in the ROTA P1 in Hyperblack).
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11-07-2007, 05:02 PM | #4 |
Scooby Guru
Member#: 86356
Join Date: May 2005
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Tri-State
Vehicle:2018 Aprilia Tuono v4 1100 |
You can't run different tire sizes front and rear.
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11-07-2007, 05:46 PM | #5 |
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yes you can. quite a few people do it for auto-x and track days (wider front tires), which im betting the OP wouldnt be doing it for these reasons though. if i remember, subaru recommends that there not be more than .25" difference in circumfrence between the front and rear tires? why is that, OP? cause you'll mess up your center diff. so generally speaking, yes, get the same size tires....unless you know what you're doing.
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11-08-2007, 08:53 AM | #6 | |
Scooby Guru
Member#: 86356
Join Date: May 2005
Chapter/Region:
Tri-State
Vehicle:2018 Aprilia Tuono v4 1100 |
Quote:
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11-08-2007, 11:45 AM | #7 | |
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Join Date: Mar 2004
Location: Ontario CA
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Quote:
1. Your fuel economy will drop. 2. Your car is more likely to tramline (makes nice leisurely drives rather stressful) 3. It will be harder to maneuver at low speeds. 4. On gravel, snow or even rough pavement you are more likely to roll over the loose surface material rather than dig down into the firm stuff (i.e. don't plan on driving fast on gravel roads). 5. Your unsprung weight will increase. If you can live with these trade-offs then wider tires are a good way to go. |
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11-08-2007, 12:38 PM | #8 | |
Scooby Specialist
Member#: 67817
Join Date: Aug 2004
Chapter/Region:
South East
Location: Spartanburg
Vehicle:FRS 2019 Bronson Smith&Nephew Genesis II |
Quote:
different size wheels, yes, and i didnt mention that though its a lot more common. but yeah, if i stumble upon where i read what i was talking about again, you'll be the 2nd to know... |
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