BikeCAD is a parametric CAD tool for bicycle frame design.
http://www.bikeforest.com/CAD/index.php
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calculs géométrie de direction pour un trike
http://www.eland.org.uk/steering.html
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site russe de velomobile
http://velomobile.org/library/articles-gl/114-2010-09-10-23-12-29
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roue qui penchent
http://www.fleettrikes.com/python%20delta.htm
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http://en.openbike.org/wiki/Python_Trikes
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http://www.theworkshop.ca/energy/etrike/tricumbent.htm
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Sturmey Archer
http://www.ihpva.org/Projects/Practic...Innovations/BuildingStubAxleHubs.html
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http://www.flickr.com/photos/saholm/page6
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http://www.hellbentcycles.com/winter_trike_construction.htm
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http://www.blids.nl/gallery/Plywood-Recumbent-Building-workshop-2003
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