22 June 1975 at Bomer Heath
| 500cc (Championship) | RH Sidecars (Championship) | 350cc (Championship) |
| 1- John Webb | 1- Steve Smith & Roy French | 1- Chris Baybutt |
| 2- Ross Winwood | 2- Pete Brown & John Morron | 2- Gerald Short |
| 3- Mick Burton | 3- Gordon Matthews & Alan Harley | 3- A.J. Lidgate |
| RH Sidecars (Transhire Trophy) | 250cc (Championship) | RH Sidecars (1) |
| 1- Steve Smith & Roy French | 1- Cyril Jones | 1- Steve Smith & Roy French |
| 2- Alan Artus & Graham Higgin | 2- Terry Owen | 2- Pete Brown & John Morron |
| 3- Gordon Matthews & Alan Harley | 3- Charlie Turner | 3- Alan Artus & Graham Higgin |
| Unlimited (Fox Five Hundred) | ||
| 1- Chris Baybutt | ||
| 2- Ross Winwood | ||
| 3- Mick Burton |