Old 08-14-16, 12:31 PM
  #3  
JohnDThompson 
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I don't think Sturmey-Archer ever offered a metric thread hub. Maillard freewheels were available in either metric or English thread. Chances are yours is English. You can test this by threading a known, English thread bottom bracket lockring onto the hub. If you can thread it on without binding, thre hub is English thread. A metric thread hub will only allow the lockring to thread on for a partial turn.

Some freewheel bodies are marked with the thread type:


Source: Sutherland's 4th Edition
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