Thread: Can it be simpler than this? (Brompton)
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Old 07-23-14 | 09:50 AM
  #19  
fietsbob
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Joined: Jun 2010
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From: NW,Oregon Coast

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That's a 67t
Gates belt is Not 1/2" pitch , like a Bike chain, I suppose ..

the (disallowed)10 mm pitch track chains , back in the day,resulted in smaller cog-chainrings
with the same, tooth count, gear ratios..
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