Most states in the USA that allow studded snow tires require that  
they be removed from April+- thru Nov. +- for the reasons mentioned  
below.

YMMV,

Tom B.-4/15 thru 11/15 in Utah I believe.

On Sep 5, 2007, at 5:32 PM, Andrew Grebneff wrote:

>> <I believe the studs are key for driving on ice.
>> The noise does not bother me on dry roads! A small price to pay for
>> safety and traction ...>
>>
>> How do studded tires behave in a panic stop? All this talk lately
>> about snow tires and chains has brought back vivid memories of
>> following a mid-70's Chevy Monte Carlo one night that had chains on
>> the rear. On dry pavement the driver slammed on the brakes and
>> locked up the rear wheels- the fishtailing and shower of sparks was
>> impressive-I was also glad I was behind him!    Jeff
>
> Fortunately studded tires are illegal in most countries. They'd be
> pretty bad on dry roads, apart from the wear they will cause to the
> road surface.
>
> When we bought out used-import 89 Corona diesel, fresh in from Japan
> (yes, we didn't think about it, it is now just starting to show minor
> signs of rust & must've been from parts of Japan where they salt the
> roads), it had Japanese snow tires on it. These are studless & very
> soft in compound, with smallish treadblocks full of siping. They grip
> remarkably well on snow or black ice... I even squealed them on ice
> once. BUT they are too soft for dry-road use and give very poor grip
> there, as well as wearing quickly. Eventually we took 'em off and
> never refitted them.
> --
> Andrew Grebneff
> Dunedin
> New Zealand
> Fossil preparator
> Seashell, Macintosh, VW/Toyota van nut
> � Opinions stated are mine, not of the University of Otago
> "There is water at the bottom of the ocean"  - Talking Heads