Thread: Pedal threads - non-standard size
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Old 05-19-20, 11:52 PM
  #15  
frizzen
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Bikes: 1955 Hercules Royal Prince Fixed Gear

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How "old"? French bikes were 14 mm x 1.25, but probably not since the 1980s. Really old (1960s?) British bikes are 9/16" x 20 TPI BSC (British Standard Cycle) which are about .004" smaller than the current 9/16" x 20 TPI UNT.
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