RE: IML: Tire expiration ?Radial vs. Bias Ply

["K. Eric Wolfe" <kewolfe@xxxxxxxxx>]

For what it is worth.  Having sold bias ply tires in my youth, I
remember that nylon cords tended to flat spot more than the newer
fiberglass or polyester cords that were being used in the (then) newer
bias-belted tires.  

-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of
RandalPark@xxxxxxx
Sent: Friday, June 03, 2005 9:56 AM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: Re: IML: Tire expiration ?Radial vs. Bias Ply

I have noticed that my old bias ply tires develop flat spots. If the
cars are driven frequently, these usually smooth out. If they sit for
longer periods, they don't.

I think that the longevity of either style of tire is going to depend on
the amount of quality put into the product. Poor quality will result in
faster deterioration from age and use in either case.

My Imperials do the best all around with high quality radial tires.

Paul W.

In an email dated 3/6/2005 1:11:22 pm GMT Daylight time,
Black55Imperial@xxxxxxx writes:

>I have original type bias ply tires on my 3 Imperials and have had
?great 
>service with no cracking or lumps beyond the 10 years mentioned. ?The
?cars are 
>stored inside with humidity control and away from sunlight. ? However,
the 
>original radial tires on some of my 70s collectible cars with under
?10,000 miles 
>began to give lumpy rides.. ?These cars are not driven at ?highway
speeds and 
>never in winter. ?These radial tires seem to have the ?belts break
after time 
>where bias do not show the same type deterioration. ?
> 
>Have others noticed a difference in the aging properties with raidal
vs. ?
>bias ply tires ?
> 
>Randy Still
>black '55 Imperial Sedan
>gray '56 Crown Imperial Limousine
>turquoise '64 Imperial Crown Coupe
>black55imperial@xxxxxxx
>


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