Thread: What year is my Prologue?
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Old 02-10-11 | 04:46 PM
  #19  
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BobHufford
Keeper of the SLDB
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Joined: Sep 2002
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From: Springfield, MO

Bikes: '75 Schwinn Paramount P-10, '86 Ritchey Commando, '87 Schwinn Cimarron, '91 Trek 990, '87 Schwinn High Sierra, '73 Schwinn Super Sport, '4? Schwinn New World, '76 Swing Bike.

The date codes will typically be on the back side of the components. You can decode them here:

http://www.vintage-trek.com/component_dates.htm

As for the assembly date being before the build date. I think at some point the Asian manufacturer (Panasonic?) was putting the "model" year in the serial number. A June of 1986 frame built for the 1987 model year would be 7Fxxxxx.

Bob
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