I just had a set of Traction T/A V-rated tires put on my S70. Judging from the tread pattern, specs and reviews on the Tire Rack web site, these tires will be perfect for my needs: decent dry and wet weather performance, with occasional light snow. (I live in coastal NJ.) My first choice was actually the Continental ExtremeContact, which seems to have similar characteristics for about $19 less per tire, but Tire Rack was out of stock on these in my size. Regardless, it's too early for me to say anything about the Traction T/As, other than there were no obvious defects.
I will comment about the tires that these replaced, though, as well as a general class of tires that I now think should be avoided. My previous set of tires were Pirelli P6000 Sport Veloce -- not the current tread design, but the previous one that was discontinued about three years ago. These tires are generally classified as "Grand Touring tires," reflecting their intention for good grip and smoother riding, possibly at the expense of some responsiveness and steering feel. These pluses and minuses are all usually attributed to the softer, more-flexible sidewall that grand touring tires tend to have. For a "sports sedan" that spends much of its time on the highway, this seemed like a reasonable compromise.
But over the course of the past three years, I've had to replace two of those tires due to sidewall bubbles. Although I couldn't recall having clobbered a pot-hole or curb such that it might damage the cord within the sidewall, apparently I did. Since those replacements, I've read Tire Rack's customer reviews to find that this was a particularly common problem on that model of Pirelli tire. The last straw for me was just before Christmas, when I hit a pot-hole and knew it this time. You can see the damage to the tire here:
http://www.jimrothe.com/volvo/pirelli-p6000.jpg
It nearly split the tread! This was the third tire of the original set of four that developed sidewall bubbles.
That night, I started digging around for other grand touring tires on Tire Rack's web site. I also scoured the reviews and noticed a trend: grand touring tires have far more problems with sidewall bubbles than any other class of tires do. Check it out for yourself and read the reviews of other grand touring tires. Apparently, the thinner, weaker sidewall cords of this class of tires just can't stand up to common road conditions.
So that's it. That's my story. Ask me about the Traction T/As again after we have a snow-fall -- tomorrow, they say -- but DON'T BUY ANY GRAND TOURING TIRES.
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Jim Rothe, '99 S70 T5M, http://www.jimrothe.com/volvo/index.html
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