[s-cars] question on Michelin Pilot Sport

[Lee Levitt]

Linus writes:

>
> At 07:54 AM 4/5/2002 -0500, Lee Levitt wrote:
> >A quick question...I picked up a set of used Michelin Pilot
> Sport tires in a
> >245/40/17" size for autocrossing and driver training. Couldn't beat the
>
> ...SNIP...
>
> >Can someone tell me whether the Pilot Sports are built with
> decreasing tread depth toward the center of the tire, or does this reflect
uneven wear?
> >(maybe an over-inflation issue)
>
> One of the phenomenons reported with wide, low-profile tires has
> been wear in the center of the tire tread caused, not by over-inflation,
but by
> under-inflation and sustained high-speed driving.  The theory is that
> centrifugal force (yes, I know, no such thing technically) causes the
> relatively unsupported center section of the tread to push out
> against the pavement more so than the shoulders. Esp common on the rears
of Porsche
> 911s.  No personal experience as such, but as under-inflated
> tires are more common than over-inflated tires, this makes sense for
street
> tires.  2 pennies.
>

That makes sense to me, more so than a consistent over-inflation problem.

The seller has agreed to take them back (full refund with shipping).

Lee
'95.5 S6 avant
'96 A6 quattro avant