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Old 04-13-2004, 08:57 AM   #4
Tire Rack Moderator
Member#: 1215
Join Date: Apr 2000
Location: The Tire Rack
800 -428-8355
ext. 4362


R3S03 = road race compound
A3S03 = AutoX compound

A3S04 = steel belted which offers better steering response and faster transitions. the previous A3S03's were not steel belted tires they used fiberglass belting material ...... and are soon to be discontinued because the A3S04 is a replacement tire for them
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