Old 01-26-14 | 11:44 AM
  #5  
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forresterace
Senior Cyclist
 
Joined: Jul 2008
Posts: 199
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From: Mount Albert, Ontario

Bikes: 1990 Norco Bushpilot shopping bike, 1988 Fiori Italia, 1990 Fiori Firenze)

The reason it's only on the right side drop-out is because , I think it's the back side locating mount for a derailleur hook. It fits on the inside of the drop-out and the hook is on the outside.
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