4 ms·

Tire treads?

• jrockway 17y ago
  Tire treads are mostly to prevent hydroplaning. (Bicycle tires can't hydroplane, at least not at bicycle speed, and therefore road bike tires don't have treads. Treads reduce the contact area between the tire and the road, resulting in worse traction than a perfectly smooth tire.)
  • wglb 17y ago
    Hmmm, so do fingerprints prevent hydroplaning?
    • jrockway 17y ago
      I have never noticed my fingers hydroplaning, so apparently yes. Mystery solved!
      • wglb 17y ago
        The earlier example of grasping a wet wine glass. That would seem to be an example.