Originally Posted by Edgar Millenium
Unless the tire is multi stage, the foam is the same, it only change the amount of foam rings it have, chunks on the rear is mostly caused to the traction and also can mean that the car needs more camber on that side.
First, foam front and rear isn't the same... , the construction front to rear is different foam.. call your tire supplier and ask if you don't believe me lol I can't speak for all the mfg's, but this does hold true for ellegi and Jaco.
Second, a durameter doesn't tell you what type of foam it is.. they may read similarly but the actual foam is different. and not just compound...Just like with your durameter you probably couldn't tell the difference between a green, a pink and a white foam tire.. why? they are all in the 30 range.. yet are different compounds right? the durometer just measures the deflection of the foam.. and assigns it a value.. degrees, thousandths of an inch, or what have you. in the end it can't tell you what the compound actually is or its adhesion properties.. different foam, yet reads the same..
Third, if you call the mfg and you don't believe them.. Call over to RC America, Ask for "Ralph", Aka Ralph Burch 2008 Winternats champ, and many time national champion and ask him...
Fourth, If you don't belive him and you think you know more than everyone else.. Try cutting any rear tire you have down to 26mm put it on the front of your car and tell me it doesn't rotate better and explain how the tire thats the same compound made the car free up so much...then tell me its the same compound...
2008 Crewchief for Grand-Am #92 Mustang
2007 Team Leader Pro Formula Mazda
2006 Pro Formula Mazda National Champions