table illustrating that wider tires roll faster

  • By Lennard Zinn
  • Published Mar. 13, 2012
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Click to enlarge. Here is what Wolf VormWalde, tire designer for Specialized, says: “’Wider is faster’ holds for clincher and tubular tires under the condition of the same air pressure. Test results (below are) from Wheel Energy in Finland. The last column shows work (Watts) to keep constant speed (40km/h) of a test drum against the resistance of a loaded (50kg) tire.”

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