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Old 07-25-2012, 10:00 AM   #1
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Tire fitment question

I got a set of Carera Rims with tires yesterday for a good price, sport II IIRC (10 spokes). These are as follows:

Front 235/40 ZR 18 7.5 x 50

Rear 295/35 ZR 18 10 x 65

Tires are Pirelli Corsa. My car is a 2002 S clad with 17 inch "Twist" rims.

What issues will I have? Will I have to replace the tires with 225/40 ZR 18 & 265/35 ZR 18/

Thanks
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Old 07-25-2012, 10:15 AM   #2
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Quote:
Originally Posted by Jaak View Post
I got a set of Carera Rims with tires yesterday for a good price, sport II IIRC (10 spokes). These are as follows:

Front 235/40 ZR 18 7.5 x 50

Rear 295/35 ZR 18 10 x 65

Tires are Pirelli Corsa. My car is a 2002 S clad with 17 inch "Twist" rims.

What issues will I have? Will I have to replace the tires with 225/40 ZR 18 & 265/35 ZR 18/

Thanks
Front should fit fine as is. Rear 295 will not fit Boxster & you don't want them to unless you are building a drag racer. Rear wheels need a 15mm-25mm spacer. Depending on the "look" you want & tire size you get. 265/35 is best for handling & cost. A 285/30 is the biggest you can go but makes the car understeer.
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Old 07-25-2012, 10:30 AM   #3
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Many thanks.

Looks like I need to buy rears.
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Old 07-25-2012, 01:17 PM   #4
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Jaak,

Those are truly beautiful rims, I'd love a set for my 2000S
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Old 07-25-2012, 01:30 PM   #5
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A guy in Windser has a nice set complete with tires. I was looking at them but the 4 hour drive one way is not worth it.

On Kijiji ---> Porsche 996/Brombacher, 3 piece wheels and tires - City of Toronto Tires, Rims For Sale - Kijiji City of Toronto Canada.
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Old 07-26-2012, 11:16 AM   #6
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What about 265/40 ZR18's for the rears? They seem to be readly available.
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Old 07-26-2012, 11:21 AM   #7
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265/40 is too tall.
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Old 07-26-2012, 11:22 AM   #8
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Thanks ... I kind of thought so ...
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Old 07-26-2012, 11:32 AM   #9
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255/35 zr 18????
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Old 07-26-2012, 12:56 PM   #10
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Tire Size Calculator - Compare Tire Sizes
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Old 07-26-2012, 02:20 PM   #11
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Actually, a 265/40-18 would be perfect with the 235/40-18 fronts. That's the factory fitment on my 987.
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Old 07-26-2012, 02:24 PM   #12
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Actually, a 265/40-18 would be perfect with the 235/40-18 fronts. That's the factory fitment on my 987.
You're correct but he has a 986 which is 225/40/18 F & 265/35/18 R.
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Old 07-26-2012, 03:00 PM   #13
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True, but the wheels he bought already have 235/40 tires mounted.
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Old 07-26-2012, 04:53 PM   #14
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Yes ... 235 on the fronts.

Folks, your are a great help!!!

My main worry is stability while driving.
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Last edited by Jaak; 07-26-2012 at 06:44 PM.
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Old 07-27-2012, 06:38 PM   #15
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Saw an ad on Kijiji where I can get the correct tires front and rear for $650. Pirelli Pzero Nero with 90% of tread existing .. Going to get those and replace all 4 tires.

Thanks for your feedback!

Jaak
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