Existing Product (shaft-driven folding bicycle): http://shop.dynamicbicycles.com/Sidekick-8-sidekick8.htm
Existing Product (folding bicycle): http://www.consciouscommuter.com/pages/recent-press
Existing Product (Brompton folding bicycle, the cool one in the lab): http://www.youtube.com/watch?v=NWzuhv6RowA&feature=youtu.be&hd=1
Existing Product (full suspension folding bicycle): http://imgur.com/a/yqOWG
Existing Product (elliptical): http://www.elliptigo.com/
TRANSMISSION Concept/Prototype (gear-shifting shaft-drive): http://www.northwindtools.com/variable-speed-drive-shaft-bicycle.html
Concept/Prototype (hubless wheel): http://www.jamesdysonaward.org/Projects/Project.aspx?ID=1305
Concept/Prototype (folding bike with bag incorporated): http://www.coroflot.com/mmadia/BIKOFF
Concept/Prototype : http://www.upenn.edu/pennnews/current/2011-05-05/latest-news/engineering-undergrads-design-bike-split-personality http://www.bikerumor.com/2011/05/02/the-alpha-bike-an-electronically-controlled-fixedfree-concept-bike/
Concept/Prototype (BMW): http://www.bikerumor.com/2012/06/17/bmw-unveils-i-pedelec-foldable-e-bike-concept-charges-in-electric-car/
Concept/Prototype (donut): http://www.bikerumor.com/2012/06/07/mmmmm-donut-folding-bicycle-concept-by-arvind-m/
Concept/Prototype (Maxwell, CU Grad's Flywheel Bike): http://www.youtube.com/watch?v=BOnjtEKArXk
Angry Mike's bicycle bible
Miscellaneous research (about gears, derailleurs, shifters etc.): https://docs.google.com/file/d/0B04PQ0RiT5qSaUF0aDBwYWpjS1E/edit Sorry that it's not that organized. These were the notes that I took during my research. -Jackie
Kickshift: http://road.cc/content/review/33373-sturmey-archer-s2-kickshift-hub http://road.cc/content/review/33373-sturmey-archer-s2-kickshift-hub http://www.instructables.com/id/Two-speed-bike-without-a-gear-shifter/#step1
IFmove: https://www.youtube.com/watch?v=h0nymIoO2Zc
Duomatic and Automatix hubs: http://all-about-hubs.com/start.php?action=gaenge_schalten2_en http://www.rantwick.com/2011/10/sram-automatix-a2-vs-sturmey-archer-s2c.html
Single fork designs: (enve clad): http://www.pinkbike.com/news/North-American-Handmade-Bicycle-Show-2012.html http://www.cannondale.com/innovation/lefty_headshok
Cannondale Onbike (with folding)
Leading link swingarm suspension
Sheldon Brown Website: sheldonbrown.com
http://www.sheldonbrown.com/gloss_ri-z.html#rotor
http://sheldonbrown.com/elan.html
http://hettlagedrive.de/ http://endless-sphere.com/forums/viewtopic.php?f=3&t=31195&start=45