"A" Foam is our most durable, affordable tyre.  Perfect if you want to go many runs without taking the wheels off the car during weekly club racing.  The wear rate of this foam is the lowest in the range, even lower than seen with "T" foam.  It rarely offers the overall performance of the others, however in lower traction conditions; occasionally it is a match for the more expensive options.  Suggested for use on Primafelt or CRC Black carpet, or when oily additive is in use.