Hooier Tires

[LM90]

Can someone tell me what the difference between a Spec. Tire and a C2000 or C4000 ?

[centralpa43]

if I remember correctly the c2000 and c4000 have different sidewalls. the Spec tire has more contact blocks across the tire. I may be wrong but that's my understanding.

[MasterSbilt_Racer]

It has to do with sidewall construction. The bigger the number, the more plys. But that isn't always the whole story for sidewall stiffness.