• Nacktmull@lemm.eeOP
      71·
      11 months ago

      Nope, in fact wooden rims ride very smooth compared to aluminium rims. Also, take a closer look, there are state of the art pneumatic road bike tires on.

      • EatYouWell@lemmy.world
        32·
        11 months ago

        Rubber isn’t the only shock absorption that a racing bike uses. The metal wheels deform a bit to absorb impact as well.

        • Nacktmull@lemm.eeOP
          3·
          11 months ago

          You must be thinking of steel rims, which are completely outdated tech. Bikes have aluminium rims nowadays and aluminium rims are stiff af, compared to other materials

          • IMALlama@lemmy.world
            4·
            11 months ago

            Aluminum in and of itself is not stiffer than steel. It’s about 1/3 as stiff as steel. That said, it is quite a bit lighter and since stiffness is proportional to cross sectional area aluminum parts can be stiffer than steel parts at the same weight because they can use more material. Strength is a whole other can of worms.

            • Nacktmull@lemm.eeOP
              4·
              11 months ago

              That is all true from a purely theoretical, material science based perspective on this, so the misconception is understandable. However, please mind that in practice, when it´s about bike components the main criteria is that they have to be lightweight. So when it´s about bike parts we always compare the stiffness of steel parts and aluminium parts of the same weight and as you explained correctly:

              aluminum parts can be stiffer than steel parts at the same weight

              Obviously that results in the aluminium bike parts being generally stiffer than the steel bike parts they are compared to. I apologize for any confusion I caused but I am a bike mechanic and not a metallurgic engineer.

              • IMALlama@lemmy.world
                3·
                11 months ago

                It’s true that I can get caught up in the nuance sometimes. That said, you and I both understand the details behind what you’re talking about but odds are a number of people lurking in the comments don’t. All I was really trying to do was nudge those people away from “substituting aluminum in place of steel with no other changes will result in a better part”.