A Temporada do Campeonato Mundial de Motovelocidade de 1981 foi a 33ª edição promovida pela F.I.M.. A temporada começou em Salzburgring e encerrou-se em Anderstorp.

A década de 1980 marcou um período de elevada competitividade na motovelocidade, com pilotos como Wayne Rainey, Freddie Spencer, Eddie Lawson e Wayne Gardner figurando entre os principais nomes da modalidade e protagonizando disputas pelo campeonato em diferentes temporadas.

Calendário #DataGrande PrêmioCircuito 1 22 de Março Grande Prêmio da Argentina Autódromo Municipal de la Ciudad de Buenos Aires 2 26 de Abril Grande Prêmio da Áustria Salzburgring 3 3 de Maio Grande Prêmio da Alemanha Hockenheimring 4 10 de Maio Grande Prêmio da Itália Autodromo Nazionale Monza 5 17 de Maio Grande Prêmio da França Circuit Paul Ricard 6 24 de Maio Grande Prêmio da Espanha Circuito Permanente Del Jarama 7 31 de Maio Grande Prêmio da Iugoslávia Automotodrom Rijeka 8 27 de Junho Grande Prêmio da Holanda TT Circuit Assen 9 5 de Julho Grande Prêmio da Bélgica Circuit de Spa-Francorchamps 10 12 de Julho Grande Prêmio de San Marino Autodromo Dino Ferrari 11 2 de Agosto Grande Prêmio do Reino Unido Silverstone Circuit 12 9 de Agosto Grande Prêmio da Finlândia Imatra Circuit 13 16 de Agosto Grande Prêmio da Suécia Scandinavian Raceway 14 30 de Agosto Grande Prêmio da Tchecoslováquia Brno Circuit

Resultado das corridas # Grande Prêmio 50cc 125cc 250cc 350cc 500cc Info 1 GP da ArgentinaSem Disputa Angel Nieto Jean-François Baldé Jon EkeroldSem Disputa 2 GP da ÁustriaSem Disputa Angel NietoSem Disputa Patrick Fernandez Randy Mamola 3 GP da Alemanha Stefan Dörflinger Angel Nieto Anton Mang Anton Mang Kenny Roberts 4 GP da Itália Ricardo Tormo Guy Bertin Eric Saul Jon Ekerold Kenny Roberts 5 GP da FrançaSem Disputa Angel Nieto Anton MangSem Disputa Marco Lucchinelli 6 GP da Espanha Ricardo Tormo Angel Nieto Anton MangSem DisputaSem Disputa 7 GP da Iugoslávia Ricardo Tormo Loris ReggianiSem Disputa Anton Mang Randy Mamola 8 GP da Holanda Ricardo Tormo Angel Nieto Anton Mang Anton Mang Marco Lucchinelli 9 GP da Bélgica Ricardo TormoSem Disputa Anton MangSem Disputa Marco Lucchinelli 10 GP de San Marino Ricardo Tormo Loris Reggiani Anton MangSem Disputa Marco Lucchinelli 11 GP do Reino UnidoSem Disputa Angel Nieto Anton Mang Anton Mang Jack Middelburg 12 GP da FinlândiaSem Disputa Angel Nieto Anton MangSem Disputa Marco Lucchinelli 13 GP da SuéciaSem Disputa Ricardo Tormo Anton MangSem Disputa Barry Sheene 14 GP da Tchecoslováquia Theo TimmerSem Disputa Anton Mang Anton MangSem Disputa

Pilotos e equipes Os seguintes pilotos e equipes foram inscritos para participar do Campeonato Mundial:

500cc Equipe Construtor Moto Pneu N.° Nome do piloto RodadaBimotaBimotaBimota BT 50099Patrick Fernandez1–16Nava Gallina-SuzukiSuzukiSuzuki RG50016Marco Lucchinelli1–1692Michael Schmid1–16Heron Suzuki GBSuzukiSuzuki RG50094Keith Huewen1–16LombardiniSuzukiSuzuki RG50078Gianni Rolando1–169Børge Nielsen1–16Mitsui YamahaYamahaYamaha YZR50088Steve Parrish1–16MorbidelliMorbidelliMorbidelli 500-460Graziano Rossi1–16Team KawasakiKawasakiKawasaki KR50080Sergio Pellandini1–1240Gregg Hansford1–1689Kork Ballington13–21PernodPernodPernod VND 50014Christian Estrosi1–16SanveneroSanveneroSanvenero 50064Carlo Perugini1–12SeelSeelFlashStar 50053Gerhard Vogt1–16Team SonautoYamahaYamaha YZR50011Marc Fontan1–16Team Solitude DeutschlandSoloSolo 50071Gustav Reiner1–1622Jon Ekerold1–16Heron-SuzukiSuzukiSuzuki RG50079Randy Mamola1–1683Graeme Crosby1–16 Seagram CompanySuzukiSuzuki RG50027Adelio Faccioli1–1691Steve Henshaw1–16Akai-YamahaYamahaYamaha YZR5002Barry Sheene1–1233Jean Lafond1–16IMN YamahaYamahaYamaha YZR50065Boet van Dulmen1–1659Hubert Rigal1–16Racing Westland SuzukiSuzukiSuzuki RG50074Jack Middelburg1–1267Marco Greco1–1621Giovanni Pelletier13–21Sonauto Gauloises-YamahaYamahaYamaha YZR50076Marc Fontan1–1610Christian Sarron1–16Heron-RothmansSuzukiSuzuki RG50057Hiroyuki Kawasaki1–1249Keith Huewen1–164Christian Estrosi13–21GPA TotalSuzukiSuzuki RG50070Bernard Fau1–1681Jacques Agopian1–16Belgarda YamahaYamahaYamaha YZR50085Guido Paci1–1268Raymond Roche1–1687Åke Grahn13–21Uncini-SuzukiSuzukiSuzuki RG50038Franco Uncini1–168Jean Lafond1–16Stimorol RacingSuzukiSuzuki RG50055Willem Zoet1–1275Gianni Rolando1–1651Dennis Ireland13–21Hostettler YamahaYamahaYamaha YZR50044Michel Frutschi1–1626Sergio Pellandini1–16Team BP-YamahaYamahaYamaha YZR50058Dave Potter1–1682Herve Guilleux1–1643Raffaele Pasqual1–1697Wolfgang Von Muralt1–16Ellis RacingSuzukiSuzuki RG50096Stuart Avant1–1639Alain Röthlisberger1–1618Corrado Tuzii1–1646Franck Gross1–16Mitsui YamahaYamahaYamaha YZR50098Steve Parrish1–1661Graziano Rossi1–167Günter Dreier1–1615Alex George1–16Riemersma RacingSuzukiSuzuki RG50034Wil Hartog1–1693Fabio Biliotti1–1690Børge Nielsen1–1654Jochen Schmid1–16Yamaha InternationalYamahaYamaha YZR50050Kenny Roberts1–1645Ikujiro Takai1–1666Sadao Asami1–1625Graeme Geddes1–16Frankonia-SuzukiSuzukiSuzuki RG50012Philippe Coulon1–1695Lennart Bäckström1–165Mike Baldwin1–1648Raymond Roche1–16Hollande IsolatieSuzukiSuzuki RG50017Dick Alblas1–1632Barry Woodland1–16Saga RacingYamahaYamaha YZR50029Stefan Klabacher1–16Honda Racing CorporationHondaHonda NR5003Takazumi Katayama1–1656Freddie Spencer1–16Beaulieu YamahaYamahaYamaha YZR50023Dale Singleton1–1619Dominique Pernet1–16Dieter Braun TeamYamahaYamaha YZR50020Josef Hage1–1647Christian Estrosi1–16Henk de Vries MotorenYamahaYamaha YZR50030Henk de Vries1–16Triumph Club WienYamahaYamaha YZR50035Fritz Kerschbaumer1–1613Andreas Hofmann1–16FKNFKNFKN SP 50024Klaus Klein1–16 Hite Sports LimitedSuzukiSuzuki RG50063Seppo Korhonen1–1684Antonio Grecco1–16 Graeme Lawrence AutosportSuzukiSuzuki RG50052Chris Guy1–1686Timo Pohjola1–16 Doyle-Risi RacingSuzukiSuzuki RG50028Sergio Pellandini1–1677Roberto Pietri1–16 Ralt Australia RacingSuzukiSuzuki RG5006Marco Papa1–161Leandro Becheroni1–16 Team AltechSuzukiSuzuki RG50072Philippe Chaltin1–1673Kimmo Kopra1–16 Intersport RacingSuzukiSuzuki RG50041Bengt Slydal1–1637Sergio Bertocchi1–1662Lars Johansson1–1642John Newbold1–16 Doran EnterprisesSuzukiSuzuki RG50069Andreas Hofmann1–1636Peter Sjöström1–1631Sadao Asami1–16 Transatlantic Racing ServicesSuzukiSuzuki RG50029Peter Sköld1–1696Seppo Rossi1–16CagivaCagivaCagiva GP500Virginio FerrariLegenda Piloto da Temporada Piloto Convidado Piloto Substituto

350cc Equipe Construtor Moto Pneu N.° Nome do piloto Rodada Kawasaki Racing TeamKawasakiModel G 35046 Anton Mang1–1692 Jon Ekerold1–16 GC KompetitionKawasakiModel G 35067 Jean-François Baldé1–1645 Edi Stoellinger1–16 Yamaha Factory Racing TeamYamahaBullet 35042 Patrick Fernandez1–1637 Carlos Lavado1–16 GCK AcademyYamahaBullet 35079 Keith Huewen1–1623 Thierry Espié1–16 ES Motorsport-Labas GASYamahaBullet 35086 Jacques Cornu1–1695 Donnie Robinson1–1638 Tony Head1–1689 Paolo Ferretti1–16 Chevallier-Yamaha RacingChevallier-YamahaRoyal Enfield18 Eric Saul1–16 Münnich MotorsportYamahaBullet 35025 Graeme McGregor1–1276 Greame Geddes1–1659 Martin Wimmer13–21 Hedströms MotorsportYamahaBullet 35097 Gustav Reiner1–1683 Massimo Matteoni1–16 Bridgestone MotorsportYamahaBullet 35054 Jeffrey Sayle1–1262 Mar Schouten1–1691 Wolfgang Von Muralt13–21 Eurasia MotorsportYamahaBullet 35013 Didier de Radiguès1–1657 Peter Looijensteijn1–16 Rick Ware RacingYamahaBullet 35082 Charlie Williams1–16 G-Drive RacingYamahaBullet 35049 Pekka Nurmi1–1628 Sauro Pazzaglia1–16 ARC BratislavaYamahaBullet 35064 Roger Sibille1–1675 Alan North1–16 Inter Europol RacingYamahaBullet 35051 Reino Eskelinen1–1671 Tony Rogers1–16 Thunderhead Carlin RacingYamahaBullet 35088 Rene Delaby1–1260 Michel Rougerie1–1626 Bengt Elgh13–21 RLR MSportYamahaBullet 35085 Vincenzo Cascino1–1622 Bruno Kneubuhler1–16 K2 Uchino RacingYamahaBullet 3505 Walter Hoffmann1–1239 Clive Horton1–1666 Yervant Samirdjian13–21 Nielsen RacingYamahaBullet 35029 Lucilo Baumer1–1698 Jean-Louis Albera1–16 Graff RacingYamahaBullet 35032 Klaas Hernamdt1–1255 Limberg Moreira1–1681 Werner Hilbk13–21 ACE1 Villorba CorseYamahaBullet 35080 Eero Hyvarinen1–1677 Gastón Sagreira1–16 Viper Niza RacingYamahaBullet 35047 Werner Schmied1–1240 Rinus van Kasteren1–1652 Manfred Obinger13–21 Astro Veloce MotorsportYamahaBullet 35024 Mitja Erjavec1–1684 Mladen Tomic1–16 Guy RacingYamahaBullet 35010 Eduardo Aleman1–126 Edwin Weibel1–1669 Manfred Herweh13–21 Spirit of RaceYamahaBullet 35090 Alois Tost1–1636 Heinz Chittka1–16 T2 MotorsportsYamahaBullet 35030 Bodo Schmidt1–1619 Siegfried Minich1–1620 Marcelo Diez1–1616 Claudio Girotto1–16 Cerdera RacingKawasakiModel G 35048 Fernando Cerdera1–16 D'station Racing AMRYamahaBullet 35094 Rafael Olavarria1–1614 Pierre Bolle1–1627 Alfredo Rios1–1668 Pancracio Catania1–16 HubAuto CorsaYamahaBullet 3508 Alejandro Aleman1–1678 Walter Villa1–1670 Arturo Venanzi1–1661 Vojko Princic1–16 Team JLOCYamahaBullet 35096 Bozo Janesic1–167 Yoshimasa Matsumoto1–1615 Marijan Kosic1–1674 Marian Srna1–16 FIST-Team AAIYamahaBullet 35093 Jacques Bolle1–1633 Richard Schlachter1–1673 Mick Grant1–16Legenda Piloto da Temporada Piloto Convidado Piloto Substituto

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