RE: [ST] Front Tire Wear

["Heyer, Matthew A." <mheyer@xxxxxxxxx>]

I can't say about the cupping, but lower tire pressures translate to shorter
tire life.  The reason is that with a lower tire pressure, as the tire
rotates it flexes more, and thus heats up more.  The increased heat softens
the tire, but allows the rubber to wear off more quickly.  Lower tire
pressures (to a point) are better for performance (softer tire has more
grip, and with the tire flexing has a larger contact patch with the road),
but worse for tire wear.

Matt Heyer


- -----Original Message-----
From: owner-st@xxxxxxxxxx [mailto:owner-st@xxxxxxxxxx] On Behalf Of Neil
Lindsey
Sent: Thursday, September 09, 2004 11:50 PM
To: ST@xxxxxxxxxxxxxx
Subject: Re: [ST] Front Tire Wear

Ken,

Would you mind elaborating a bit on how to tire pressure affects cupping?

It  sounds a little like you are suggesting that lowering the pressure a bit
can help stretch front tire life expectancy.

Or does lowering the pressure actually improve how a cupped front tire
behaves (and not necessarily the mileage you'll get)?

I've always kept the front pressure at the recommended 36 psi to the bitter
end.

Neil


- ----- Original Message -----
From: "Ken Mitchell" <kp.mitchell@xxxxxxxxxxx>
To: <ST@xxxxxxxxxxxxxx>
Sent: September 9, 2004 7:57 PM
Subject: RE: [ST] Front Tire Wear


> <snip>

> The front may not be down quite to the wear bars, but it will continue 
> to cup worse and worse no matter what pressure you run. (Assuming you 
> keep in in the safe zone of 32-38 psi.)
>
> <snip>




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