Thread: Drilled crank arms
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Old 09-03-12 | 06:34 AM
  #32  
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Kimmo
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Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231

Old-school cranks tended to use a lot less metal.

I guess they must have been flexy though.
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