Quarter Test

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Quarter Test
Related Categories: Tread Wear Indicator | Penny Test | Tire Stopping Distance | Measuring Tire Depth Depth With A Penny | Measuring Tread Depth With A Coin | Minimum Tread Depth | Tread Wear Indicator Bars | When To Get New Tires | Stopping Distance | Wet Stopping Distance
  • Spare Change

  • …hydroplane (float) on top of the water, losing traction and increasing stopping distances. It costs a little more to use a coin to test for 4/32". Take a quarter; insert George Washington’s head upside down into the tread in several locations across the tire. If you can see all of his…

  • Pirelli World - Part 2

  • …based in Germany. Similar to their Italian counterparts, the German technical team is quartered adjacent to the test center. The same sorts of indoor tests are carried out here as in Milan, speeding test turnaround time for the German O.E. customers. Two separate tire manufacturing plants are…

  • How many wheel weights are too many?

  • …it into balance. Let's take a test example of one incident I recently encountered when a customer expressed concern that 15 wheel weights were used on his 19" BMW wheel and tire package. Is 15 weights too many? Let's find out. * Each stick-on weight is a quarter of an ounce * 15 weights on one…

  • Winter Tech Information - Remember These W.I.N.T.E.R. Tips

  • …traveling to, consider replacing tires when they reach approximately 4/32" of remaining tread depth. Use a quarter, not a penny, to measure tread depth. Tire Rack's team proved through testing that insufficient tread depth doubles your stopping distance. Adequate tread reduces hydroplaning and helps…


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