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Old Jul 22, 2004 | 06:44 PM
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Default Kumho tires

This is a question for those of you running Kumho Supra ECSTA 712 tires. Are you running 275/40-17's on all 4 corners? I notice they come in 285/40-17 also. It also looks like they're all "W" rated. Any issues with that? I'm thinking of putting these on my 96 LT4, on ZR-1 style AFS wheels that are size 17 X 9.5.

Thanks, JCS44
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Old Jul 22, 2004 | 07:07 PM
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Im still running them up front they're a good tire for the money......I coulda swore they were Z rated though...I hit 148 mph on the way home from a concert last week ...Got 315 Sumitomos out back
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Old Jul 22, 2004 | 08:17 PM
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I have an 86 that I run 285/40/17 on the back and 275/40/17 on the front and they are z rated and I love the tires. I have no slip at all even when taking 30 mph curves at 60-65 mph
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Old Jul 22, 2004 | 08:25 PM
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Originally Posted by ses86vette
I have an 86 that I run 285/40/17 on the back and 275/40/17 on the front and they are z rated and I love the tires. I have no slip at all even when taking 30 mph curves at 60-65 mph
I installed EXCTA Mk 275/35/18 on rears about 5000 miles ago and after a few hundred miles of break in I loved them

Have a set of 276/40/17 that I will ne installing on front soon

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Old Jul 22, 2004 | 08:35 PM
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Originally Posted by Powerdrive
...I coulda swore they were Z rated though...I hit 148 mph on the way home from a concert last week ...Got 315 Sumitomos out back
No, they are W rated, but don't worry they're good for 168 MPH.
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Old Jul 22, 2004 | 09:21 PM
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I have the 255's on my 84 and they are a hard tire. I'm going to change to the BF drag radial shortly.
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Old Jul 22, 2004 | 09:52 PM
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Doesnt matter about the W-rating.

I run 275's on all 4.
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Old Jul 22, 2004 | 10:59 PM
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Is there any reason NOT to run 285's on all 4 corners?
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