• Very good and instructive video. The lefty is one good piece of engineering.

    Thanks for all the comments!

    The lefty works for two reasons.

    1) big fat axles.
    2) clamping above and below the headtube.

    Your design simply has no crown. I'm assuming stiffness comes from tube diameter. Might be and idea to go with a 1 1/2" steerer. Depends on how stiff you need it to be I guess.

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