snow tire question

[thejimrose]

thanks greg, you're correct that i hadn't considered the heat cycling
but had considered the age of the tires. the m2's only have 5k tops.
loads of life left still.

On 1/29/07, Greg Smith <lifeisabirdie at yahoo.com> wrote:
> Jim
>
> I would caution you against mixing 2 Alpin with the m2 tires. You are
> overlooking or have not mentioned the age of the m2 tires. Once they start
> heat cycling, the tread rubber gradually hardens up. If you took a set of 4
> new tires and used 2 of them for a few weeks and then stored all 4 tires
> away; 2 that were used along with the 2 unused ones; after 2 years you would
> see, more correctly feel a difference in how pliable the tread rubber is.
> That is the point; unless these m2 tires are fresh this season; the grip
> difference to the other 2 new Alpins would be too great.  One axle will have
> great grip and the other less so.  You are either setting yourself up for a
> lot of oversteer or understeer when you are on slick surfaces.
>
> Get a matched set of tires. I've ice raced and run ice trials for 30 years;
> so I have a little experience with snow tires.