Tire Tech Guide

Conversion charts and time charts plus "how to" and safety information, etc.
  • Quick reference guide to Worldwide tire technical data.
  • Metric/U.S., Load index, and Speed index conversion tables.
  • Tire conversion charts from the 1950's to present.
  • Approved rim charts from 1964 to present.
  • Other valuable tire safety information.
  • Charts courtesy of RMA (Rubber Manufacturer's Association) and TIA (Tire Industry Association).

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