Is there a point when tires reach too many heat cycles?

[cmaclean]

I've always driven on old tires. I pick up tires that guys throw away and run on those. They generally have 6-10 cycles on them when I get them. With Hoosiers the tires are the same, just slower than new. The Toyo RA1's are a horror. They are fine for about 6-8 laps and then they will let go with zero warning. Once they get to that stage you have to basically slow down and suck it up for the rest of the race. They don't come back after that point. When I say slow down I mean 1-2 seconds off the original pace.

As an aside, I bought my first new set of Hoosiers this year (discontinued RS05's) and I am shocked at how good they are.

 

[spnkzss]

I've always driven on old tires. I pick up tires that guys throw away and run on those. They generally have 6-10 cycles on them when I get them. With Hoosiers the tires are the same, just slower than new. The Toyo RA1's are a horror. They are fine for about 6-8 laps and then they will let go with zero warning. Once they get to that stage you have to basically slow down and suck it up for the rest of the race. They don't come back after that point. When I say slow down I mean 1-2 seconds off the original pace.

As an aside, I bought my first new set of Hoosiers this year (discontinued RS05's) and I am shocked at how good they are.
[/b]

When you've run old tires for so long and go to a "new" set you ahve to be careful. The first time I did that I almost put the car on its roof because I turned in, and so did the car, just a little earlier then I was use to.