• Saik0
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    19 months ago

    Even with disk brakes on both wheels you don’t have enough contact with the ground to ride at such speeds in a traffic-safe way.

    https://www.omnicalculator.com/physics/stopping-distance

    https://www.webpages.uidaho.edu/niatt_labmanual/chapters/geometricdesign/theoryandconcepts/BrakeReactionTime.htm

    The brake reaction time normally used in design, therefore, is 2.5 seconds.

    Stopping distance in a car is therefore 140.22 ft.

    Do you think that you can’t do equal or better on a bike?

    Any situation that you believe a car can do safely, there’s no reason to believe a bike couldn’t either. FFS we have these wonderful things called motorcycles. Much less contact with the ground [than a car], much higher speeds. Works just fine.

    • @Treczoks
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      9 months ago

      https://www.omnicalculator.com/physics/stopping-distance

      Do you think that you can’t do equal or better on a bike?

      If you look at that page carefully, it gives the full formula for the brake distance. And assumes a factor of f=0.7 for an average car.

      The AASHTO gives a factor of f=0.25 for a bike. Which means: Yes, there is a difference.

      The f for a motorcycle is somewhere in between, but nearer to the .7 than the .25.