BE A SPORT
'(<a href="http://www.j-archive.com/media/2009-05-15_DJ_11.jpg" target="_blank">Jon of the Clue Crew shows part of a bike in Trek Bicycle Corporation in Waterloo, Wisconsin</a>) An early advocate of cycling, Paul de Vivie experimented with geared bikes, leading to the perfection of this Frenched-named gearshifting device'
the DeRailleur