Why there are no (to my knowledge) electric bikes with 700c tires? All the ones I’ve seen use fat tires, what is the reason behind that? Cc @nostupidquestions@lemmy.world

  • spacecowboy@sh.itjust.works
    103·
    1 year ago

    You are incorrect. Fat tires require greater energy to roll, as they have much more rolling resistance than a typical bike tire. There is more rubber on the ground at all times which increases friction, which requires more energy to overcome.

    Fat tires are not more energy efficient and do not provide better range.

      • spacecowboy@sh.itjust.works
        72·
        1 year ago

        Yes. Per your own link:

        At the same inflation pressure, a wide and a narrow tire have the same contact area. A wide tire is flattened over its width whereas a narrow tire has a slimmer but longer contact area.

        Fat tires are pressured up around 10-13 psi. Most mountain bike tires are pressured up between 40-60 psi. Road bike tires are pressured up between 80-130psi.

        You will always have more rolling resistance with a fat tire than you will with other common bike tires.