• Those cottered (a clavettes) ali cranks - very rare, and there could be a reason. I suspect they tended to break. An ali ring on steel cranks works fine, probably best to stick with that- especially at those prices.

    I note that all these five pin crank sets look compatible with the original 1904 BSA version.

  • Re cottered ali cranks ... I guess the pressure point of the cotter isn’t doing the cranks any favours.

    Don’t worry I’m not buying those, just enjoying looking at them!

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