If I'm not mistaken companies do this because in general racers match up tires like double purples front/ purples rear, so to make choosing tires easier we call double purples xtra hard fronts, and purples xtra hard rears.... doing this someone who doesn't really understand the whole foam concept can choose a matched set quite easily. However hard fronts may also be purples with hard rears being pinks.... these are all just compounds listed out of my head and probably don't equate to what you may be buying, just an example......
However.... CRC Xtra hard dual compound fronts are the same as Jaco plaids, and CRC Xtra hard fronts are Jaco purples, but they seam to wear alot longer than Jaco's and are mounted on 2.0 inch (inch-up) wheels.
BTW: I only use CRC foams, bringing the track magnets to touring cars is the single best thing that ever happened to racing and me!!!!
G's RC Raceway- Best off-road track on the east coast...period!!!
Pitman for Team Dallas Austin...
Last edited by IMPACTPLAYR; 05-12-2002 at 08:17 PM.