> Yes, sometime in the 60s Bianchi went to the separate > cups and races for the head bearings... > > Having the bearing races incorported into the head > lugs was the normal way of doing things for most > bike manufacturers even before 1900... With these bicycles, were the cups actually part of the lugs or were they separate pieces that were simply brazed in place? In either case, wasn't there a danger of reducing the hardness of the cups due to excessive heat during during the brazing process? Or am I misunderstaning the design entirely. I.e. were there separate, machined races that were pressed into the integral cups? I believe this is how it's done with the best of the modern designs. Best regards, Fred Rednor - Arlington, Virginia
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