Thread: double crankset and single speed drive train?
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Old 07-17-15, 09:55 AM
  #23  
fietsbob
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My BSR 3 speed + MD gives an 18~80" range, the direct gear is a 58"..

This is another one .. It shifts with a Cable Patterson Bike - Rocket Fast Shifting | Cannot Throw a Chain

Over drive when engaged , chainring turns faster than the crankarms ..
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