[1] The popularity of defending champion Barry Sheene had boosted the appeal of motorcycle racing into the realm of the mass marketing media.
[1] In the 500 cc class, Suzuki returned with its defending world champion, Barry Sheene, along with teammates Teuvo Lansivuori, Pat Hennen and Wil Hartog.
[2] Sheene opened the season with a win in the Venezuelan Grand Prix but then fell ill to a virus that weakened him for the first part of the year.
[6][7][8] Hennen's promising career was cut short when he suffered head injuries while competing in the Isle of Man TT during a break in the Grand Prix season schedule.
[15] Eventually, Roberts was declared the winner with Sheene being awarded third place behind privateer Steve Manship, who did not stop for a tire change.
[16][17][18] The title fight between Roberts and Sheene went down to the final race of the season, the German Grand Prix held at the daunting, 14.2-mile-long (22.9 km) Nürburgring racetrack.