Thread: Trek 600 beauty...
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Old 12-01-09, 04:37 PM
  #10  
IronFan
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Oh ok, it says this:

531 Club Sport or CS - Double butted main tubes - 531 manganese molybdenum(forks) - 501 chrome molybdenum(stays)
Last edited by IronFan; 12-01-09 at 04:41 PM. Reason: oops
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