![]() ![]() Yet unbeknownst to most of us Schwinn was actually using three types of frame tubing and construction, which meant that there were three classes of Schwinn ten-speed bicycles. This article describes Schwinns final high-volume series of fillet-brazed bikes, the 1962-78 ten-speed Super Sports, Sports Tourers, Superiors. Schwinn Bicycles Database Series Of Fillet Perhaps in those days manufacturing lugs was more expensive than hand brazing.).ĭuring the 41-year span there were a variety of Schwinn fillet-brazed models, but details of early models are difficult to trace. The author does not know why lugs were not used for these frames. Unlike the Paramount, however, Superior and New World framesets were not lugged but fillet brazed of seamless chrome molybdenum tubing. The Superior and New World were the second line of Schwinn bicycles, with in a more intermediate price range. The Paramount, with its lugged frame of Reynolds or Accles and Pollock tubing, was the top of the line. Here - with characteristic hyperbole of the age - is the opening text from Schwinns April 1938 advertisement that announced these new bicycles. The three new models were the Paramount, the Superior, and the New World. Lugged bicycle frames, for example, are now manufactured by automated machines.Ĭustom framebuilders still provide fillet-brazed construction, and tandem framesets were often fillet-brazed when lugs to fit their frame angles were not available.Īt that time bicycles were a fashionable but expensive mode of transportation for adults.īicycles began to serve more as vehicles for children, which led to the development of heavier and sturdier models. The extra thickness of the fillet also provides strength, and its smooth contour distributes stresses evenly.įor additional strength Schwinn also brazed steel sleeves into the interior of its frame tubes at the joints.). ![]()
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December 2022
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