• Ok, well if we're going to include optimisations to rider position on top of swapping the cranks then I can believe that.

  • This was my point. Shorter cranks might facilitate a more aero position, but simply changing cranks length and keeping your old position won't change much.

  • But you should be changing your saddle height to allow for the different crank length. That's going to change your position in some way.

  • simply changing cranks length and keeping your old position

    Keeping which position? Saddle position relative to the pedals can be set is several possible ways, so "keeping" your KOPS would mean moving the saddle back if you selected shorter crank, for example.

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