The 2005 British Superbike season started on 26 March and ended on 9 October. It included 55 riders on 25 teams from 8 countries.<sup>#</sup> Riders used machines from 5 different constructors, including Honda, Ducati, Kawasaki, Suzuki and Yamaha. <br> Spaniard Gregorio Lavilla became the first non former Commonwealth rider to clinch the BSB Championship Title onboard a Airwaves sponsored GSE Racing Ducati 999 F04.