High Quality Content by WIKIPEDIA articles! The 2005 Superbike World Championship season was the 18th F.I.M. Superbike World Championship season. The season started on February 26 at Losail, and finished on October 9 at Magny-Cours after 12 rounds and 23 races (the second race at the Imola round was cancelled due to heavy rain). 2005 saw the return of the Japanese manufacturers with major teams from all four Japanese manufacturers ran through European importer’s teams.