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Old 03-12-2013, 05:33 PM   #21 (permalink)
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Quote:
Originally Posted by CapriRacer View Post
Fuel for the fire:

Fact or Fiction? Tire contact patch and air pressure.

Explains why race cars use wide tires.

So - No - the contact patch is not the same with the same pressure and load.

Oh, and tires do NOT behave according to classical friction theory. Tires generate their highest grip at 10% to 15% slip.
Saw that. But it was talking about lower pressures and for two motorcycle tires, which are very narrow. I'm wondering how big the disconnect is for square shouldered radials.

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Old 03-12-2013, 05:58 PM   #22 (permalink)
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Those Avons don't look like bike tire sizes to me.
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Old 03-12-2013, 06:17 PM   #23 (permalink)
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Originally Posted by NeilBlanchard View Post
This is pretty cool!

(Tire size: 155/55R19)
I still rather have 155/90 r12/13/14 or 15
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Old 03-12-2013, 06:57 PM   #24 (permalink)
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Though the article doesn't list all the "large & narrow" sizes, I wonder if this is related to the upcoming VW XL1 release... The sizes on the VW aren't very tall but they are friggin' narrow! (115/80R15... narrower than my motorcycle tires!)
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Old 03-12-2013, 08:05 PM   #25 (permalink)
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The VW XL1 uses Michelins, I think? The fronts are as you say 115/80R15 and the rears are 145/55R16.

VW's of old, and Volvos and Saabs used 155/80/15's for a long time.
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Old 03-12-2013, 09:46 PM   #26 (permalink)
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Quote:
Originally Posted by NeilBlanchard View Post
The VW XL1 uses Michelins, I think? The fronts are as you say 115/80R15 and the rears are 145/55R16.

VW's of old, and Volvos and Saabs used 155/80/15's for a long time.
Yup, two of my diesel Rabbits did. The third one had the "big" size, which was 175/70R15.

@Frank Lee, your cat cracks me up.
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Old 03-12-2013, 09:54 PM   #27 (permalink)
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I thought Rabbits had 13s and GTIs had 14s?

Oh, to be as cute as the cat!
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Old 03-13-2013, 06:24 PM   #28 (permalink)
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Quote:
Originally Posted by NachtRitter View Post
Though the article doesn't list all the "large & narrow" sizes, I wonder if this is related to the upcoming VW XL1 release... The sizes on the VW aren't very tall but they are friggin' narrow! (115/80R15... narrower than my motorcycle tires!)
Actually 115/80 is rather tall, as is any tire 75 form factor and better, gone are the SR days, too bad those were better tires.
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Old 03-13-2013, 10:19 PM   #29 (permalink)
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Quote:
Originally Posted by Frank Lee View Post
Those Avons don't look like bike tire sizes to me.
Ah. My eye. Brain Fart.
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Old 03-13-2013, 10:59 PM   #30 (permalink)
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