Based on my last post I am going to be getting a new set of R888's, maybe even a new set of 18" CCW's and R888's, but in the meanwhile, I am going to Cal Speedway in one week (9/20) and I just took my track wheels off with the MPSC's on them and noticed that one of the rears has a tiny bit of cord showing and it has a little "staple" looking thing in the middle of the tread... I took pictures of both... Should I use these for this weekend or is it not safe?

I have a set of fronts that I am going to use but I don't want to buy new rear 19" tires if I am switching to 18's in a couple weeks....Plus I doubt I can get MPSC's in my area by then...

 

No way I'll track with these. Just not worth it.

 

No way!!

 

you should not pass tech with that tire, especially at Fontana where you will reach some real speed...if it is self-tech you are putting yourself and your fellow participants at unnecessary risk...nuf said...look around the forums and check with your buddies who track and see if you can't get a couple take off 19's that will be good enough until you get the R888s...

 

I hear ya... I'm going to see if I can find some MPSC take offs, if not, then maybe I'll get a set of PS2's or whatever else I can find...

 

I just swapped out my MPSC the fronts were very similar to your photos, the rears were a little better. I swapped all 4 tires out just for safety. I figured I was a half to one and half track days left on the rear, not worth it IMO.

I would just order your new wheels and tires, you will need them soon anyway.

 

I know what you mean, I only have one week before the track day though, so i'm trying to get thru that day and then i'l order the new wheels and tires...

I actually only need one rear MPSC, the other will probably make it...

 

Agreed, don't chance it. Not at those speeds.