Birota
Birota  est quodlibet vehiculum plerumque binis rotis praeditum, uno post alterum in forma metallica afficto, quo unus homo vel rarius duo aut plures homines se movere possunt. Catena rotas pedaliaque conectit ut birotarii pedalibus versantibus progrediantur. Qui birota vehitur birotarius vel cyclista appellatur.

Birotae saeculis undevicensimo et vicensimo in Europa, praecipue Germania, excogitatae, evolutae, introductaeque sunt. Hodie omni in orbe terrarum exstant plus quam 1 000 000 000 birotarum, qui numeri numeros autocinetorum magnopere superant, ambo in summa et per summam exemplarium fabricatarum.

Birotae in multis orbis terrarum regionibus sunt principalis transportationis modus, et populo gratissimae oblectamenti res sunt, quae ad varios usus adaptantur, sicut ludibria puerilia, salutem adultorum, adhibitiones militarias, vigilium, et tabellarium, certamina birotarum, et ausa in circis exhibita, ut in funambulismo. Praecipue Nederlandensibus et Sinensibus, birotatio esse principale fere modum eundi dicitur.

Minime commutatur fundamentalis birotae usitatae forma vel configuratio post 1885 fere, annum cum primum exemplar catenis utens excogitatum esset. Multa autem singula meliora facta sunt, praecipue post materias modernas et designationem a computatris adiuvatam adventam, innovationes quae permultas designationes ad varia birotationis genera aptissimas siverunt.

Historia
Vehiculum Draisienne et Laufmaschine (Anglice dandy horse) appellatum, primus transportationis modus qui solum binis rotis in tandem utebatur, a Carolo Drais, quodam barone Germanico, excogitatum est. Prima birota nunc habetur, sed ei non erant pedalia. Drais hoc machinam coram populo Manhemii anno 1817 Lutetiaeque anno 1818 protulit. Eques, super formam ligneam a binis rotis fultam sedens, vehiculum pedibus impellerit, cum rotam anteriorem gubernaret. Anno 2018, Dies mundialis birotarum a Conventu generali Nationum Unitae decreta est ad usum birotarum, oecologismum et salutem promovendum.

Pinacotheca 

Birota automataria
Birota BMX
Birota ergometrica
Birota montana
Birotatio
Bixi
Bodaboda
Circuitus Franciae
Circuitus Hispaniae
Circuitus Italiae
Theodoricus Senft
Tabula rotata gubernabilis
Trirota
Unirota

Notae

Bibliographia 
All About Bicycling. Rand McNally.
Ballantine, Richard. 1975. Richard's Bicycle Book. Pan.
 Berto, Frank. 2005. The Dancing Chain: History and Development of the Derailleur Bicycle. Franciscopoli: Van der Plas Publications. ISBN 1-892495-41-4.
 Caunter, C. F. 1972. The History and Development of Cycles. Londinii: Science Museum.
 Couzereau, Béatrice. Fachwörterbuch der Zweiradtechnik. Theodisce—Anglice—Francice. ISBN 3-87073-054-4.
 The Data Book: 100 Years of Bicycle Component and Accessory Design. Franciscopoli: Van der Plas Publications. ISBN 1-892495-01-5.
 Dodge, Pryor. Faszination Fahrrad: Geschichte, Technik, Entwicklung. Delius-Klasing. ISBN 3-89595-118-8.
 Fehlau, Gunnar. 1000 Tipps für Biker. ISBN 978-3-87073-322-3.
 Gressmann, Michael. Fahrradphysik und Biomechanik. Delius-Klasing. ISBN 3-89595-023-8.
 Herlihy, David V. 2004. Bicycle: The History. Portu Novo: Yale University Press.
 Kirshner, Daniel. 1980. "Some nonexplanations of bicycle stability." American Journal of Physics 48 (1).
 Koeppel, Dan. 2007. "Flight of the Pigeon." Bicycling 48, no. 1 (Ianuarius & Februarius): pp. 60–66. ISSN 0006-2073. Editio interretialis.
 Lessing, Hans-Erhard. Automobilität: Karl Drais und die unglaublichen Anfänge. Maxime-Verlag. ISBN 3-931965-22-8.
 Lessing, Hans-Erhard, ed. Ich fahr so gerne Rad: Geschichten vom Glück auf zwei Rädern. DTV. ISBN 978-3-423-20985-4.
 Moreno, Shonquis, et Ole Wagner. 2010. Velo: bicycle culture and design. Ed. Robert Klanten et Sven Ehmann. Berolini: Gestalten. ISBN 978-3-89955-284-3.
 Perry, David B. 1995. Bike Cult: the Ultimate Guide to Human-powered Vehicles. Four Walls Eight Windows.
 
 Sarig, Roni. 1997. The Everything Bicycle Book. Adams Media Corporation.
 U.S. Department of Transportation, Federal Highway Administration. America's Highways 1776–1976. Praecipue pp. 42–43. Vasingtoniae: U.S. Government Printing Office.
Wilson, David Gordon, Eduardus Borysewicz, Gregorius LeMond, Davis Phinney, Connie Carpenter. Bicycling Science. Cantabrigiae Massachusettae: MIT press. ISBN 0-262-73154-1.

Nexus externi

"Bicycle facts," www.didyouknow.org.
 Birotae ut Generatores, renewableenergyresource.net.
 Museum Historia Pedalizatio (Maxumum orbis terrarum birotationis museum), www.pedalinghistory.com.
 P.E.P.A. (Situs publicus Cycling Association of Veteran Athletes of Greece), www.pepa.gr
 "Home Made Electric Bicycle," www.greenoptimistic.com.
 Menotomy Vintage Bicycles (photographemata), apud www.oldroads.com.
 "The Bicycle - Worlds most efficient form of transportation," gotoes.org.
Waterproof Socks
Best Bike Shorts
 Glossarium birotationis Sheldon Brown, sheldonbrown.com.
 Hudson, William. 2003. Myths and Milestones in Bicycle Evolution, www.jimlangley.net.
 Historia Birotarum et Aliorum Cyclorum apud www.sciencetech.technomuses.ca (Canadense Scientiae et Technologiae Museum).
 Jones, David E. H. 1970. Stabilitas Birotae.
 "The World Awheel: Early Cycling Books at the Lilly Library," www.indiana.edu.
 "Bicycle Maintenance," en.wikibooks.org (Wikibooks)
 "Bicycle Tutor," apud bicycletutor.com.
 "Bayamo: The City of Bicycles" ("photofeature" a Ihosvanny factum, Havana Times, 22 Augusti 2010), www.havanatimes.org.
 UCI Mountain Bike & Trials Certamen Universum "Val di Sole 2008", ITALIA www.mtbvaldisole2008.it.

Birotae
Inventiones Germaniae