Broken Crankshaft

[Chris Garner]

Interesting Colin...and bad luck! In my experience breakages of 1 1/8" cranks are rare. I firmly believe the metal of this type was either of better quality or manufacturing technique than the later larger diameter cranks. Look at the revolutions the cranks were taken up to in the early Seven racers. Like many others here, I would also replace it with one the same diameter.