Thread: What is the reason the braking surface of a disc has so many holes?
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Old 04-30-19, 03:24 PM
  #57  
fietsbob
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Drum brake hubs.. they have been reliable for 40+ years..
friction material surface in the shoes is large , so don't wear much at all..


I built wheels for my winter MTB build .. studded tires.. from Finland..
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