I think that you're running cold pressures that are way too high. When I was running Michelin PRs, my tire vendor recommended cold pressures of 22 in the rear and 31 in the front. The rear Michelin PR has a stiff carcass so lower pressures allow better traction.

 

Very interesting info Jason! +1 on the quality feedback.

I totally believe you in running much lower tire pressures for the track. I am just trying to figure out how I can get the most grip. Does the fact that I am not on the track 99% of the time have anything to do with putting in a pressure as low as michelin recommends? I get them pretty hot, as I tend to stick around the local twisties quite a bit. I think that pressure that low will kill the tire life, but I would rather have better grip and pay out a little more often.

I also thought that the back was supposed to me firmer then the front?

 

Also I did not see any 07 settings on that website....?

 

If you're running on the street, get rid of the Power Race tires.. at a street pace, even a a very, very fast street pace, race tires just don't come up to and maintain the correct tempature and actaully offer much less grip than a true street tire. Run street tires as they are designed for optimum grip across a much larger tempature range. On my street bike (duc 748) I actaully run normal everyday Pilot Powers, not even the 2CT's, and have never had a single traction issue due to the tire itself.

If you're really looking to optimize grip, tires are only 1/2 of it or less, the suspenion set-up plays a huge role in it, with the correct spring rates being the most important part.

Yes, typicially the front is run a couple lb's more pressure, but michelin is the exception the rear Power Race is specifically designed to run at a low temp (as goose wrote) because of it's construction (extremely stiff side wall). I have also heard that the new rear Dunlop DOT race tire due out this summer will also run a extremely low pressure.

 

Interesting... I guess I will be getting different tires next time. I do have to say though that they stick great, and I have never had a problem with them thus far. I always try to keep my tires as warm as possible when riding, but I doubt they get as hot as they would on a track.

I also am looking for a shop that will professionally set my suspension so that it is matched to my weight and all. I do kinda want to play with it myself though, as I was looking for a good base setting to start at, such as the ones from sport rider, but they do not seem to have any 07 settings, so I am not sure where I will be going with that just yet.

Thanks for the help though. Sorry I stole your thread f3.