What are people using? I went to the tire rack site and the only winter size was 295. It occurred to me if 315 will burn up the AWD diff, a 295 would also. Anyone running something other than PS2s, or are they good enough?

 

I run 235/35 19 and 295/30 19. These are the factory recommended sizes for our 997TT. Make sure you get the proper load ratings/N0,N1 N2 designations. There won't be damage to the AWD diff, as it's been approved by Porsche. I've run 295/30 19 on my
previous 997 4S for 3 winters, and current 997TT for 2 winters - NO problems whatsoever.

I went with Nokian WR - they are great in snow with the snowflake symbol, carry the N0 designation, $1100 for the set:

http://www.tiresbyweb.com/tbw_tiresearchresultsadv.aspx

Buy them now before they get sold out.

If you drive your car in colder weather/snow (below 5 degrees celsius), summer tires don't perform properly (grip, traction etc). You wouldn't take your track tires/slicks out on wet public streets.....why would you take summer tires out in the snow?

 

Yes, set your computer to winter tires and use the recommended sizes. I use the contis, third winter so far, no issues.
Yes, they sell out quickly, nokians are good, pirelli sport snows are great as well.

 

Thanks guys.

 

Please call me, thanks.

 

I run Michelin Pilot Alpin PA2 N1.
F:235/40/18
R:265/40/18

The car is as fun in the snow as it is on summer roads.

 

I also got the Nokias when I bought the car. In generally would never buy Nokia, but these have been performing well.

 

I'm going into my 5th winter on my Conti. Low mileage should I worry about the tires hardening?

 

These wheels are quite hard from the start. You will feel if they slip too much.