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Detail of gears on Bianchi at 2007 Seattle bike show

Four speeds is all you get on this 1949 Bianchi displayed at the 2007 Seattle International Bicycle Show. More about development of derailleurs.

Permanent link to this article: http://www.bikingbis.com/2007/03/11/detail-of-gears-on-bianchi-at-2007-seattle-bike-show/

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