Last I heard it was a tie between the RE-71R and the BFG Rival S.
You should get around 10-15 thousand miles out of them.
Everything we here out here is RE-71Rs. If I get 15K miles out of them, I'm estatic! 10K is about 6 months of use for me but 15K would put it closer to a year.
The Michelin PSS gets a Tire Rack wet rating of 9.1 for wet traction and 9.0 for anti-hydroplaning (dry traction = 9.6).
The Potenza RE-71R gets 7.6 and 7.3, and dry of 9.7. So very slightly better in the dry than the Michelins but a lot worse in the wet. Given the weather up here, that's not a trade off I'd opt for, but you guys in sunnier climes might.
Yes, these are not optimal tires in the wet. If you compare them to other tires in their class (the PSS are in a different sub class under summer tires) they are superior in the wet.
In the dry though, in competition, I'll take every last bit I can get.
I know Robo seems to like them. But he says they are twitchy, follow the groves of the freeway, just like the Super Sports.
I am sure it is just the freeway system, way more traffic on ours than what Robo drives.
I drove the 60/215 to 10 back from the tire shop and they felt good to me but they were a bit more responsive than my stock tires (that's sarcasm...they were a LOT more responsive). I didn't notice them picking up the ruts in the freeway but then again I think back to riding my motorcycles and how they'd pick up a rut...never had a car feel that way so maybe my rut-o-meter is off after riding motorcycles. LOL
There was considerable discussion on this some years ago, and a formula was found (elsewhere on the web) that you could plug in your tire's characteristics to find a good starting point. More info in the thread here: At what pressure do I run my replacement tires at - A formula
, but to save reading, the formula is as below. On using this for my Conti's, sure enough, the value came out to ~34 PSI.
Note that the max tire PSI and max load correspond to the particular tire's stiffness and build. That's
why this formula works.
TS, thanks so much for that! Now I know where I'm going to start my tire pressure at once I get my car back from the dealer tomorrow. The local Chevy dealer got it up on their alignment rack (The one at the neighboring GMC dealer I usually take my car too is too high. The Chevy dealer has this one for Corvettes) and I have my front Camber stood back up to 1.5 degrees. At 2.5 the inner tread of the tire was just wearing too much and with the firmer shock and sway bar setup I have up front compared to most Kappa Autocrossers, I think 2.5 was just too much for the amount of roll I was seeing up front.
1.5 in the rear looked great on wear so we'll see how this behaves with this setup.
Did I mention I love these tires? Dear lord they hook up. Came through a turn yesterday that normally, if I applied a bit of throttle on exit the back end would step out. I came in faster, rolled into the throttle sooner and deeper with about 3 more lbs of boost than I had been running before, and the car just WENT. Oh it was nice.