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Old October 14th 2002, 17:31
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tyre sizes again - 40 or 50 profile?

just bought 4 genuine porsche cup2's, 7x17 et55

what tyre sizes do most people run?

I was thinking of 205/40's on all 4, but it seems Porsches run 205/50's as standard on this size of rim.

Has anybody got a picture of 40 series & a 50 series tyre to compare?
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Old October 14th 2002, 17:46
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205/40/17

Tire Diameter: 23.5"
Section Width: 8.1"
Sidewall Height: 3.2"

Minimum Rim Width: 7"
Maximum Rim Width: 8"

205/50/17

Tire Diameter: 25.1"
Section Width: 8.1"
Sidewall Height: 4"

Minimum Rim Width: 5.5"
Maximum Rim Width: 7.5"


A 205/40/17 is going to give you more fender clearance if you are lowered. THe 205/50/17 is going to be closer to stock height.
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Old October 14th 2002, 18:15
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Re: tyre sizes again - 40 or 50 profile?

Quote:
Originally posted by hot66
just bought 4 genuine porsche cup2's, 7x17 et55

I thought you were using those fuchs?

As long as your not using cup 1s

darren
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Old October 14th 2002, 18:21
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sold fuchs a long time ago

cup2's have been the plan for a while, have toyed with others but decided the cup2's followed the lines of my car better, I feel they look more organic
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Old October 14th 2002, 18:32
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Go with 40's up front. 50's could cause problems. You could run 50's out back, if you wanted to. Less clearence issues.
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Old October 14th 2002, 18:40
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ah yes

I have rust on my bug to give it that organic look
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Old October 14th 2002, 19:25
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I'm running 40's all round for that lowered look and they are lots better for clearance too!
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Old October 15th 2002, 09:10
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Hi

If you have bad roads around your way go for 50s, 40 or lower are only for very attentive drivers. Why not go 1/2 way and use 45s.

Steve C
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Old October 15th 2002, 14:22
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the roads in Yorkshire (UK) are very narrow, very twisty, full of potholes & usually not very smooth. I think I should Baja my cabrio instead

has anyone got any photos of wheels with 50, 45 or 40 tyres on?

Just so I can compare looks.
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