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Quarter Test
Related Categories: Wear Bars | Stopping Distance And Tread Depth | Snow Traction Devices | Minimum Tread Depth | Traction Devices | Space Saving Spare | Wet Stopping Distance | Penny Test | Lincoln Penny Tire Test | Coin Test
  • 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…

  • Related Products: Tire Weight | Rim Weight | Wheel Weights
  • Tire Tech Information - Mounting & Balancing

  • …on the third try. Done this way, the high spot on the tire has been tried at each quarter of the wheel. At one of those points, the tire should be good and round. At that point, rebalance the tire, and go for a test drive. If the vibration persists, the problem is either in the tire, or elsewhere in…

  • Tire Tech Information - Measuring Tire Tread Depth with a Coin

  • …If part of Lincoln's head is always covered by the tread, you have more than 2/32" of tread depth remaining. 4/32" remaining tread depth Place a quarter into several tread grooves across the tire. If part of Washington's head is always covered by the tread, you have more than 4/32" of tread depth…

  • 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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