Four speeds is all you get on this 1949 Bianchi displayed at the 2007 Seattle International Bicycle Show. More about development of derailleurs.
Posted on:
March 11, 2007
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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