Sugino used the 151 standard prior to using 144, thus why I asked about the BCD. The comments above are correct, that will be hard to date due to the long production time. Give the nice folks over in C&V a shot.
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC