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Tire pressure and speed rating
Posted by Bob Davis (more from Bob Davis) on Tue, 8 Jul 2003 15:51:31
In Reply to: Maximum allowable vs. what's reasonable., Ari
[Profile/Gallery]
, Tue, 8 Jul 2003 07:47:46
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I know that Yoni is referencing an H-rated tire, but I'd like to inject that although your pressure recommendations might be okay for this speed rating, it may not be for a V-, Z-, or W-rated application.
For example, my Aero's factory spec for its 205-55VR-16's is 35 psi cold.
I have run Firestone SZ-50's at 40 psi (front) and 38 (rear) consistently without adverse center wear, though in the long run the ride was a bit short of acceptable. I now run them at 38 front, 36 rear (cold), which is a good compromise for me.
My feeling, though, is to paraphrase an old tire merchant and autocrosser, who said that the ideal pressure is at that point that feels right for ride and handling. He eschews adherance to pressure specs or manufacturer recommendations, but believes the feel is the best gauge. I feel that way, too, for the enthusiast that would never tolerate under-inflation, but certainly not for the hoi polloi.
posted by 68.11.251...
Posts in this Thread:
- Tire pressure PSI, Yoni, Mon, 7 Jul 2003 15:25:31
- Maximum allowable vs. what's reasonable., Ari
, Tue, 8 Jul 2003 07:47:46 - Use the numbers given by the manual, 46 psi is too...., TKC, Mon, 7 Jul 2003 16:39:25
- Not true, T. Christopher, Tue, 8 Jul 2003 12:50:51
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