1983 Grand Prix motorcycle racing season championship. In a fitting end to a successful career, Roberts won his last-ever Grand Prix race, however Spencer was able to secure second place to claim the world championship. The two riders dominated the season with each claiming six victories and six pole positions in the 12 race series. The following Grands Prix were scheduled to take place in 1983: Points are awarded to the top ten finishers. A rider has to finish the race to earn points. 1983 Grand Prix motorcycle racing season The 1983 Grand Prix motorcycle racing season was the 35th F.I.M. Road racing World Championship season.
1982 Grand Prix motorcycle racing season and Stefan Dörflinger traded wins, each rider winning three races, but Dörflinger took the title because of his three second-place finishes. The following Grands Prix were scheduled to take place in 1982: Points are awarded to the top ten finishers. A rider has to finish the race to earn points. 1982 Grand Prix motorcycle racing season The 1982 Grand Prix motorcycle racing season was the 34th F.I.M. Road Racing World Championship season. Italian Franco Uncini on the Roberto Gallina backed Suzuki took a well-earned championship for Roberto Gallina's Italian Suzuki team in the 500cc class. Yamaha introduced a new motorcycle