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Old 04-22-19 | 03:35 PM
  #56  
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Kovkov
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Joined: Nov 2017
Posts: 390
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From: Switzerland

Bikes: 1957 Alpa Special, 1963 Condor Delta, 1967 Tigra Sprint, 1977 Oltenia, 1987 Mondia, 1965 Staco de luxe, 1969 Amberg

It‘s a derailleur drivetrain. I‘ve never come across a quiet derailleur drivetrain.
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