Crank Arms Shortening

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  • Опубликовано: 14 дек 2024

Комментарии • 37

  • @dewindoethdwl2798
    @dewindoethdwl2798 Год назад +12

    You’ve done a better job in a bathroom than I’ve seen some do in a workshop. Well thought out 👍👍

  • @SharpByCoop
    @SharpByCoop Год назад +3

    Well done. I shortened a set of 175 Shimano to 155. (Drill press) Why, some ask? I am 5'6 with 29" legs. 172.5 has me hopping off my seat. NOW I feels smoother. My Zwift power for 1 hour was actually improved by about 5 watts with same heart rate. Provided arms do NOT come this short. That's why you (and I) did this. Props.

    • @borzhommm
      @borzhommm  Месяц назад

      Congrats, good for you

  • @upward_onward
    @upward_onward 3 года назад +3

    Thank you. I was thinking how to reduce crank arm length from 175mm to 160 mm.

  • @FalcoBikes
    @FalcoBikes 2 года назад +1

    How did the alignment turn out?

  • @velosapien
    @velosapien Год назад

    I am 5'10" , ride a recumbent and need 155mm. 175 feels to jerky and unable to attain high cadence. I too will be shortening my 175 to 155

  • @isaacfryxelius979
    @isaacfryxelius979 3 года назад +2

    What pedal taps did you use? I just bought a pair of 9/16 taps but it said in the manual they are for restoring threads, not to cut new threads...

    • @borzhommm
      @borzhommm  3 года назад +7

      It says the same but aluminium is a soft metal and the bits cut through the crank quite easily, just add bit of any oil, cooking oil is fine as well.

    • @isaacfryxelius979
      @isaacfryxelius979 3 года назад +3

      @@borzhommm many thanks, it worked for me as well now. Scary and heavy, but then it turned out great.

    • @MrDAVIDSKYLE
      @MrDAVIDSKYLE Год назад

      i was thinking about how he tapped the right peddle because its opposite threaded. i didnt know they sold peddle taps

  • @funkolog
    @funkolog 3 года назад +5

    genial. who needs a micrometer if You have a credit card

  • @enfeeyano
    @enfeeyano 6 месяцев назад

    What's ur wife height & inseam length?
    I'm 5'4 with 26.5" of inseam
    Thinking to decrease 170mm crank to 140mm

    • @borzhommm
      @borzhommm  6 месяцев назад

      I can not remember now, but I do remember I used a formula which I had found on the internet for calculating the crank length

  • @paulrobinson4987
    @paulrobinson4987 11 месяцев назад

    The problem now is finding a crank that is not hollow these days, not like the older cranks that use to be fuller in thickness.

  • @THEPAINOFITALL
    @THEPAINOFITALL Год назад

    Did u use left hand tap?

    • @borzhommm
      @borzhommm  Год назад

      as far as I remember I used right and left tap

  • @testdirver
    @testdirver 9 месяцев назад

    they last or broke

  • @mohapagla
    @mohapagla 2 года назад

    Can I do 175 to 162.5? I don't wanna go shorter.

    • @borzhommm
      @borzhommm  2 года назад +1

      I don't think it will work, unfortunately.

    • @miguelgonzalezvaz5552
      @miguelgonzalezvaz5552 Год назад

      @@borzhommm how about 160mm? Is that possible? Thanks for the video! very little information on this topic. Short cranks are crazy expensive!

    • @borzhommm
      @borzhommm  Год назад +1

      @@miguelgonzalezvaz5552 potentially it is possible, the only thing is there would be very little material left. It's cheap to give it a go anyway

    • @miguelgonzalezvaz5552
      @miguelgonzalezvaz5552 Год назад

      @@borzhommm thank you!

  • @BladeBarn
    @BladeBarn 2 года назад +1

    just lost power. give it a few years and the flavor of the month fad will turn back around to longer arms that you can still do 90rpm with are better

    • @wx2999
      @wx2999 Год назад +1

      No, you dont lose power, and there are many other advantages

    • @bm-ks5dl
      @bm-ks5dl Год назад +1

      @@wx2999 Helps with knee discomfort, as well as facilitating an overall better fit on the bike

    • @borzhommm
      @borzhommm  Год назад +1

      I made them shorter for my wife, the stock ones were way too long for her

    • @BladeBarn
      @BladeBarn Год назад

      @@wx2999 if you spin 90 rpm with 175s and then run a shorter arm at 90rpm you will absolutely lose power.

    • @iansaitou
      @iansaitou Год назад +2

      @@BladeBarn he shortened the cranks for a better fit for his wife, power output is most certainly not his biggest concern.

  • @northwestmountainbikeaddic6874
    @northwestmountainbikeaddic6874 2 года назад

    Looks bad? Why not just buy shorter cranks

    • @borzhommm
      @borzhommm  Год назад +5

      The size I needed didn't exist