Re: <ALL> TIRES: Which WON'T stick to grooves/road??

[Pat Donahue <pdonahue@xxxxxxxxx>]

Eddie writes:
> 
> All this tire talk reminded me to ask a question.  My car has some
> Dunlop D40M2 215/45 ZR 17 tires.  They handle great, but stick to the
> road too sensitively.  That is, every time there is a road in the grove,

(I can't resist!)  Would that be an apple grove, orange, what kind? :)

> the tire(s) will pick it up and ride it like it's on a rail.
> 
> It's my first set of high performance tires, so I'm not sure if this is
> a classic side-effect/trade-off of having these tires for every day
> driving use.  If not, are there any other [comparable] makes you have
> had better experiences with?

What you're describing is called "Tramlining".  It occurred on my car in
a huge way when I had the DumbFlop D40M2s in 235/45 17.  The problem
went away completely when I switched to Pirelli P7000 in the same size. 
The Pirellis had the added benefit of retaining the Z rating while also
adding all-season capability (or at least rating which'll keep me from
getting a ticket if I get stuck in Northern VA).

Some folks have found the DumbFlops to tramline _less_ than other tires
so I suspect there is some issue with the geometry of the car's front
end.

I love my Pirelli P7000s.  They pump water like a fire truck in the rain
and have some very user friendly break-away characteristics in both wet
or dry.  They're also considerably quieter than the DumbFlops.
- -- 
Pat Donahue  CCA 125031
Vienna, VA
'91 M5 4GTFUL
'72 MGB 8LYFGR&  <-- looking for a buyer so I can build a race car.

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