Best Track Day Tire for Gen1?

Randy Grein randygrein at
Wed Jun 18 05:34:13 PDT 2008

That's not chunked, just worn out. (grin) I get in the neighborhood of  
6000 miles out of a rear, never worn out a front. Too many others  
waiting in line. Thing is, heat cycles are a race thing, not a street  
thing. On the street tires generally don't get hot enough to count as  
a heat cycle; an hour of freeway riding put them at just over 100  
degrees on a 65 degree day.
Randy Grein, WMRRA #41

On Jun 18, 2008, at 12:23 AM, Jo Rhett wrote:

> What confuses me is that when the tire wears all the way down,  
> rubber starts coming off and the cords come through.  That's usually  
> in the 10th-11th track day on the tire, 1 heat cycle per day.    I  
> know this because I've ridden 2 sets of Pirellis down this far --  
> one because Wheel2Wheel screwed me and I ended up racing on an old  
> set of shagged tires, and later on I did it just to see how linear  
> the tear-down was.  The trackday provider had a fit when I rolled  
> into the pits with the cords coming out of the tire.  Linear and  
> predictable all the way down ;-)
> Anyway, 10-11 heat cycles is all I've ever gotten out of the tires.   
> Sometimes only 8 or 9 depending on how I abused them (20-lap solo  
> endurance races, etc)
> Given that I commute 36 miles each way, I'm thinking one week of  
> commuting and the cords start coming out...?  There's cheap and then  
> there's dead when the car behind you also going 80mph rolls over  
> you :-(
> On Jun 17, 2008, at 5:36 PM, Randy Grein wrote:
>> Jo, they don't chunk - and wear (for a modern race tire) is pretty  
>> good. We're a long way from the early days of supersport racing  
>> when 'DOT Race' meant a death sentence in the rain. I've gone  
>> through several sets of supercorsas that were retired to the street  
>> (free to me tires are good!) and had zero problems - they even do  
>> OK in up to an inch of snow, better than the cars were. In the rain  
>> they stick better than the stock tires, ditto in the cold. You know  
>> what they're like when they get hot. (grin) I wouldn't pay $400/set  
>> for 6,000 mile tires, but when nobody takes them, nobody buys them  
>> (used) they're a better deal than anything else.
>> Randy Grein, WMRRA #41
>> On Jun 17, 2008, at 11:10 AM, Jo Rhett wrote:
>>> On Jun 9, 2008, at 3:40 PM, Erik Weber wrote:
>>>> I use the Diablo Super Corsas, and they are awesome, but they cost
>>>> more than $100 more per set even from a race dealer (somewhere  
>>>> around
>>>> $350), don't last as long (they are softer), won't work well if you
>>>> don't get them hot enough (too floppy), and *seem* to not last as  
>>>> long
>>>> if you don't use tire warmers to reduce heat cycling (I can't prove
>>>> that but my experience tells me it's true).
>>> With the price raise they are now like $400 a set, and I can  
>>> absolutely state that they last much longer with tire warmers.   
>>> Last year I stopped using tire warmers at track days so that it  
>>> was less work to do, and I got only 5 days (1 race and 3 track  
>>> days) out of a set of tires.  I immediately went back to using  
>>> warmers on the next set and went back to 2-3 races and 4-5 track  
>>> days per set.
>>> I've heard stories of people using DOT race tires on the street,  
>>> and I think they are insane.  I suspect I'd get 3 round trips to  
>>> work before the tire would chunk.
>>> -- 
>>> Jo Rhett /  velociRaptor Racing
>>> #553 WERA / AFM
> -- 
> Jo Rhett /  velociRaptor Racing
> #553 WERA / AFM

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