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Old 08-30-2005, 10:46 AM   #1
Undepelo
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Question Whats the smallest size tires on 7.5"-8" wheels?

I'm looking into buying wheels and tires for winter for my 05 STi and was looking at the possible combinations. Since there are very few inexpensive fitting wheels, I want to match them with a narrowest winter tire because it performs better plus I assume they will be less expensive. My guess is that the narrowest wheel will be a 7.5" wide so what tire widths will fit without issues? If there are several, which tire size will be more common therefore less expensive?
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Old 08-30-2005, 11:48 AM   #2
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I'd probably go with a 205 or 215 from a 50-65 aspect ratio.

I wouldn't be too concerned about running a stock size tire on the stock rims with a good quality snow tire though.
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Old 08-30-2005, 11:53 AM   #3
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Old 08-30-2005, 12:04 PM   #4
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Quote:
Originally Posted by ratt_finkel
I'd probably go with a 205 or 215 from a 50-65 aspect ratio.

I wouldn't be too concerned about running a stock size tire on the stock rims with a good quality snow tire though.

Well I'm not concerned on the performance of the stock size really. I just wanted to know what other sizes would fit without issues, specially narrower and more available/cheaper per size that the OEM size. I don't want to use the OEM BBS's either because of the PITA it is to mount low prof. tires on nice wheels. The techs who do this work all seem to hate their job and I hate dealing with the whole thing. I want to keep the BBS's from scratches and dings. Also because the weather here in MD it's convenient to just swap sets than to run winters 100% of the time.
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Old 08-30-2005, 12:06 PM   #5
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Quote:
Originally Posted by ripvw
I'll go there after I figure out what sizes I can get...

I'll probably end up getting the wheels they sell for $129 that fit 05 STi's
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Old 08-30-2005, 12:49 PM   #6
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Humm looks like the Dunlop M3's are cheaper in 205/50 than in 225/45...
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Old 08-30-2005, 01:32 PM   #7
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....i'd do a 215/50
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Old 08-30-2005, 04:03 PM   #8
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Quote:
Originally Posted by Uncle Scotty
....i'd do a 215/50
Could you elaborate?
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Old 08-31-2005, 07:56 AM   #9
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Quote:
Originally Posted by Undepelo
Humm looks like the Dunlop M3's are cheaper in 205/50 than in 225/45...
The height looks perfect, although the approved rim width is 5.5 - 7.5. How wide are the winter wheels going to be?
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Old 08-31-2005, 09:07 AM   #10
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Quote:
Originally Posted by Scooby Freak
The height looks perfect, although the approved rim width is 5.5 - 7.5. How wide are the winter wheels going to be?
I would get narrower wheels if I could but there aren't a lot of wheels that fit the 05 STi. . The cheapest wheel I can find are the ASA JH3 from tirerack @ $129 each.
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Old 09-01-2005, 04:03 AM   #11
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you can stretch a 195 on a 8" wide wheel.

Keefe
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Old 09-01-2005, 09:33 AM   #12
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Quote:
Originally Posted by xenonk
you can stretch a 195 on a 8" wide wheel.

Keefe
But is it recommended?
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Old 09-01-2005, 09:37 AM   #13
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Quote:
Originally Posted by Undepelo
But is it recommended?
I wouldn't. Isn't the bead more likely to pop off?

A 215/50-17 on a 17x7.5 wheel sounds like a good cheap winter setup for an STI.
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Old 09-01-2005, 09:50 AM   #14
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Quote:
Originally Posted by Scooby Freak
I wouldn't. Isn't the bead more likely to pop off?

A 215/50-17 on a 17x7.5 wheel sounds like a good cheap winter setup for an STI.
Is there a reason for going 215 vs. 205? Looks like the both have the same diameter but the 205 is just a bit narrower and cheaper.
And there are more to choose from.
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Old 09-01-2005, 10:01 AM   #15
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No reason, actually the 205/50-17 is closer in diameter to 225/45-17. A 215/50 would be a half inch taller & change the speedometer by 3.5%. Price & availability are much better reasons.
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Old 09-01-2005, 10:06 AM   #16
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Quote:
Originally Posted by Scooby Freak
No reason, actually the 205/50-17 is closer in diameter to 225/45-17. A 215/50 would be a half inch taller & change the speedometer by 3.5%. Price & availability are much better reasons.
Well I got 2-3 people telling me to go 215 when the 205 looks like a closer match and cheaper. (7 winter tires in 205 vs only 4 in 215 in tirerack)
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Old 09-01-2005, 12:49 PM   #17
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...there is a good bit of evidence that speedometer of the USDM '05 STi is actually calibrated for a 235/45 tire....there have been speedometer discrepancies, GPS verified, that support this idea.

THAT, and the fact that the STi can use a bit more gearing, is why a 215/50 would be a better idea....and a bit taller tire in winter is an advantage.
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