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Carrera-lll 18 inch wheels - another good choice for a 928?

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Old 05-07-2009, 01:48 PM
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Jadz928
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Originally Posted by 6mil928
Anyone gone to 235 or 245 on the fronts of the C3 wheels. I currently have 225 on mine and need to buy new tires. The 225 looks to small for the wheel in my opinion.
I have 235/40 fronts tires. Fit nice... look at above post.

Do you have CIII's on yours? I thought your had the Carrera Lightweights... with difference offsets.
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Old 05-07-2009, 01:52 PM
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Originally Posted by Jadz928
I have 235/40 fronts tires. Fit nice... look at above post.

Do you have CIII's on yours? I thought your had the Carrera Lightweights... with difference offsets.
These are mine
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Old 05-07-2009, 01:55 PM
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Originally Posted by 6mil928
These are mine
I thought so. Don't those have front offsets nearer ET50, as opposed to the CIII at ET57?
Reason I ask is because it may be difficult to fit 235's with the lower offset.

BTW, I love those wheels!
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Old 05-07-2009, 01:58 PM
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RKD in OKC
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Those are Carrera 5 spoke lightweight NOT Carrera IIIs
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Old 05-07-2009, 02:29 PM
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Yep the fronts are 50mm and the rears are 65mm. I need to check the calculator to see if the 235 or 245 will work. Jason
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Old 05-07-2009, 02:35 PM
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Ok checked the calculator and 235 will stick out 2.5mm past the fender and the 245 will stick out 7.5mm so I guess 225 is the widest for the street.
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Old 05-07-2009, 02:43 PM
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Originally Posted by 6mil928
Yep the fronts are 50mm and the rears are 65mm. I need to check the calculator to see if the 235 or 245 will work. Jason
I think you will rub on the fender with anything wider than 225 on an 8" ET50 wheel. 235 tires on your ET50 would stick out 2mm further than my 245 tires on ET57, and I think I'm cutting it really close.

Dan
'91 928GT S/C 475hp/460lb.ft
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Old 05-07-2009, 02:50 PM
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Originally Posted by dprantl
I think you will rub on the fender with anything wider than 225 on an 8" ET50 wheel. 235 tires on your ET50 would stick out 2mm further than my 245 tires on ET57, and I think I'm cutting it really close.

Dan
'91 928GT S/C 475hp/460lb.ft
Looks like your right Dan guess it's 225 for me
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Old 05-07-2009, 03:33 PM
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So nobody worried about the weight rating?
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Old 05-07-2009, 03:40 PM
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Originally Posted by Aryan
So nobody worried about the weight rating?
Nope it's all about the BLING
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Old 05-07-2009, 03:45 PM
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Originally Posted by RKD in OKC
Those are Carrera 5 spoke lightweight NOT Carrera IIIs
AH, that is what we call those then... They are my favorite Porsche factory wheels ever. They say they are a little bit delicate though and break from time to time and with hard use. LOVE the look!
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Old 05-07-2009, 03:54 PM
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Originally Posted by 6mil928
Nope it's all about the BLING
I calculated that when I loose 10 lbs I'm safe
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Old 05-09-2009, 01:42 AM
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Originally Posted by 6mil928
Ok checked the calculator and 235 will stick out 2.5mm past the fender and the 245 will stick out 7.5mm so I guess 225 is the widest for the street.
My 225 hit when pushed, or big speed bumps.

The fenders need to be rolled like the 89 928 GT

P.S. But I think they are the best looking rim, and really easy to clean!
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Old 05-09-2009, 02:48 PM
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Originally Posted by Aryan
I calculated that when I loose 10 lbs I'm safe
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Old 11-24-2016, 11:45 AM
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Hi, everyone, first time 928 owner here. Just bought an 81 auto. It's going to the shop in two weeks for body work and fresh GP white paint. I am wanting to start with Porsche rims, so I am planning to go with the previously suggested specs. This setup was on an 87 (red one above). Is there any real difference between the wheel space from 81 to 87? The stock wheels are 16x7. The extra inch doesn't cause rubbing during turns? Thanks everyone, glad to be part of the club.

Front: 18"x8" et57mm Carrera III w/ ContiSport 225/40ZR18
Rear: 18"x10" et58mm Carrera III w/ ContiSport 285/30ZR18
Last edited by Shaughan Keaton; 11-25-2016 at 12:35 AM.
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