Thread: Nishiki Serial Number Database
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Old 02-08-18 | 05:37 PM
  #1863  
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From: Rupert's Land

Bikes: 1981 Raleigh GP, 1985 Norco Bush Pilot, . . .

Originally Posted by jj1091
I'd imagine the C68M designation is the bottom bracket width, 68mm.
I agree, it is information about the BB shell. I have seen this stamped on several BB shells of frames made by Giant.
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