Originally Posted by admranger
Richbot is correct.
My source was a Toyo senior technical manager. The same one who used to ship me free tires (street and track) all the time for evaluation. I never did a chemical analysis, but I have no reason to doubt him.
Regardless, the 888's are crap for DE's (or pretty much anything else).
Your source seems more reliable than mine
. But based on how differently they behave, I am still sceptical the R888 and RA1 have the same compound.
As an aside, I still wonder why Toyo discontinued the RA1 to replace it with the R888 (only to bring back the RA1 after the market pleaded for it)...