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.
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.