Thread: Is 9sp chain compatible with 3sp drivetrain on Brompton?
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Old 12-12-16 | 10:32 AM
  #8  
fietsbob
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I've been using a full bushing 3/32" chain* .. the type is longer wearing than Derailleur chains.. On a skip tooth 15t, 12 full teeth, 3 short ..

* it was an OldStock find, from Harris Cycles, in Newton MA..




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