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Old 06-09-2008, 12:06 PM   #1
state
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Unhappy I think I may have screwed up...

ok guys, when it comes to tires and rims I am a newb.

I just bought a set of used Tarmac IIs 17x7.5 that came with a set of 225/45/17 blizzaks, I wanted to pop a set of summer tires on so I bought a set of 245/40/17 Federals. now I am afraid that they will be too wide for my rims or even my fenders. I cant cancel the order without paying a restock fee

do you think these tires will fit?

for reference, I am sitting on a set of whiteline flatout springs


ok guys, flame away at me for being a newb
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Old 06-09-2008, 12:32 PM   #2
Aaron'z 2.5RS
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Man, you're so screwed....





























Really, I'm not sure, but it sounds like you are screwed.. lol...
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Old 06-09-2008, 01:08 PM   #3
Arctic Penguin
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well

ya geot the wrong tires and the wrong springs
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Old 06-09-2008, 01:26 PM   #4
kunfuzion
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it'll fit but the tires will bulge. if you have a wagon the 245's may rub but you shouldn't have clearance issues if you have a sedan.
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Old 06-09-2008, 01:48 PM   #5
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....the recommended wheel width for that size (according to Federal) is either 8"-9" or 8"-9.5". .....depending on the model you purchased. They'll buldge as kunfuzion mentioned.
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Old 06-09-2008, 03:24 PM   #6
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teh tyres will fit easy. u will probably need to roll the rear fenders.
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Old 06-10-2008, 03:39 PM   #7
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245/40-17 Rim Width Range...... 8.00 to 9.50
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Old 06-10-2008, 04:38 PM   #8
state
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I may be starting a For Sale thread VERY SOON then.
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Old 06-10-2008, 04:45 PM   #9
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Quote:
Originally Posted by state View Post
I may be starting a For Sale thread VERY SOON then.
Don't just yet. They'll fit the rims just fine. Depending on the sidewall stiffness, and the pressures you run, they may feel a little softer on turn-in, but not a big deal.

You'll probably be able to run them a little high on pressure to get some of the feel back.

Not worth losing hundreds of dollars on the deal, try them out first.
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Old 06-10-2008, 05:04 PM   #10
Luke@tirerack
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squishy sidewalls
irregular wear
tramlining
reduced steering response
reduced contact patch

not really a good fit
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Old 06-10-2008, 05:08 PM   #11
REX8
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Quote:
Originally Posted by Luke@tirerack View Post
squishy sidewalls (depends on the tires)
irregular wear (false, we're talking about 10mm over...he won't see any wear changes running a reasonably correct pressure)
tramlining
reduced steering response (a product of sidewalls, the extent of which depends on the tires...might be horrible, might be hardly noticeable)
reduced contact patch (ummm....no. Curb-weight and PSI determine contact patch AREA. Change in SHAPE, sure).

not really a good fit

See comments

Of course no one would recommend it for street driving, but if he has them already, and the loss of turn-in isn't horrible (again, depends on the tire), it very well might not be worth losing the $$$.

There are plenty of stiff sidewalled summers that will feel better in a 245 40 than a 225 all-season. Its all relative. If he can live with it, maybe he'd rather not lose the money.


BTW: You forget to mention gas mileage, unsprung weight, etc!
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Old 06-10-2008, 05:31 PM   #12
kunfuzion
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or sell the wheels and get something a bit wider.
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