The 1975 Gulf Oil British League season was the 41st season of the top tier of motorcycle speedway in the United Kingdom and the 11th season known as the British League.
The league was sponsored for the first time by Gulf Oil. Reading Racers returned after a one-season absence to increase the size of the league back to eighteen teams and the ban on overseas riders that rode in other leagues abroad was lifted.
The Ipswich Witches won their first title, defeating Belle Vue Aces by a solitary point. John Louis and Billy Sanders scored heavily throughout the season for Ipswich. Belle Vue found consolation by winning the Knockout Cup.
In their last season at the Cowley track, Oxford Rebels won the Midland Cup, beating Wolverhampton Wolves but the competition was overshadowed by the death of rider Gary Peterson.
<small>M = Matches; W = Wins; D = Draws; L = Losses; Pts = Total Points</small>
+ Match awarded to Oxford
The 1975 Speedway Star British League Knockout Cup was the 37th edition of the Knockout Cup for tier one teams. Belle Vue Aces were the winners.
First round
Second round
Quarter-finals
Semi-finals
First leg
Second leg
Belle Vue Aces were declared Knockout Cup Champions, winning on aggregate 86-70.
Peter Collins won the British League Riders' Championship for the second time, it was held at Hyde Road on 18 October.
East Group
West Group
East Group
West Group
Final
Oxford won the Midland Cup. The competition consisted of six teams.
First round
Semi final round
Final
First leg
Second leg
Oxford won on aggregate 79âÂÂ76
Wimbledon retained the London Cup but there were now only two teams remaining in London.
Results
Belle Vue
Coventry
Cradley Heath
Exeter
Hackney
Halifax
Hull
Ipswich
King's Lynn
Leicester
Newport
Oxford
Poole
Reading
Sheffield
Swindon
Wimbledon
Wolverhampton