Schwinn giant dating serial numbers

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Older Schwinn "cruisers", such as the Excelsior that was the inspiration of the first mountain bikes, used a straight lower top tube from the bottom of the head tube to the seat tube.

They also manufactured their own rims in the Chicago factory, the "Schwinn Tubular Rim".

Designating the width with a fraction instead of a decimal usually signifies a straight-sided rim, not a hook-edge rim. The most common difficulty is that the Schwinn 26 x 1 3/8 (I. Fast-forward to the 1960-70's, when Italian-made road and track bikes moved in to take over much of the mid- and high-end market. was made president of the company and promptly closed down all of the Paramount operations until they could be brought up to date.

After the bike-boom of the early 1970's, Paramount was in a poor state of affairs in regards to competition and advancing technologies. Marc Muller, a young new Schwinn engineer, was given the responsibility to head up the project.

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There are necked-down parts that fit into the top tube and down tube, like internal lugs. Muller has a very detailed explanation of this process, in his superb article: , also on this site. The Typhoon probably dates from the late '50's or '60's.

Schwinn also built a factory in Greenville, Mississippi, but it didn't last, and even bought a factory in Hungary, but the deal fell through, and Schwinn never imported any Hungarian bikes to the U. Good mathematics doesn't always help you when it comes to bicycle tires. The Paramount was developed for track and road racing by Emil Wastyn, a 6 day racing frame builder, mechanic and Schwinn dealer in Chicago, who immigrated from Belgium. Schwinn, who wanted the bike to be introduced in 1938.Schwinn was sold in 1993 to the Scott Sports Group, which retained the Paramount name/trademark but sold off the Waterford factory.It was purchased and is now run by Marc Muller, Richard Schwinn (the great grandson of Ignaz Schwinn) and George Garner.The Schwinn Web site had a Collectors' Page with info on dating, serial numbers, etc.but the link now goes to a message saying that the forum is closed.

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