The 1955 Ulster Grand Prix was the seventh round of the 1955 Grand Prix motorcycle racing season. It took place on 11–13 August 1955 at the Dundrod Circuit.
500 cc classification Pos Rider Manufacturer Laps Time Points 1 Bill Lomas Moto Guzzi 25 2:00:31 8 2 John Hartle Norton 25 +0:06 6 3 Dickie Dale Moto Guzzi 25 +3:13 4 4 Bob McIntyre Norton 3 5 Peter Murphy Matchless 2 6 John Clark Matchless 1 7 Eric Jones Norton 8 Percy Tait Norton 9 Bill Collett Matchless 10 Morrie Low BSA 11 Bob Matthews Velocette 12 Malcolm Templeton Matchless 13 Ken Tostevin Matchless 14 A. F. J. D. Martin Norton 15 F. H. Turner Norton 16 Ralph Rensen Norton 17 Ernie Oliver Norton 18 R. Knox Norton 19 R. H. King Norton 20 K. W. Swallow Matchless 21 J. Hayes AJS 22 W. R. Evans Matchless
350 cc classification Pos Rider Manufacturer Laps Time Points 1 Bill Lomas Moto Guzzi 20 1:39:38 8 2 John Hartle Norton 20 +0:14 6 3 John Surtees Norton 20 +1:13 4 4 Cecil Sandford Moto Guzzi 3 5 Bob McIntyre Norton 2 6 Peter Murphy AJS 1 7 Jack Brett AJS 8 Derek Powell Norton 9 John Clark AJS 10 Frank Perris AJS 11 Bill Aislabie AJS 12 Percy Tait AJS 13 Sammy Miller Norton 14 Arthur Wheeler AJS 15 Ralph Rensen Norton 16 Barry Stormont BSA 17 Bob Matthews Velocette 18 Bill Collett AJS 19 R. Ferguson AJS 20 Fred Cook AJS 21 Robin Fitton Velocette 22 A. F. J. D. Martin AJS 23 Malcolm Templeton AJS 24 W. Ferguson AJS 25 Austin Carson BSA 26 J. W. Parkinson Norton 27 S. Murray Norton 28 H. Plews AJS 29 Tom Turner Norton 30 R. Wijesinghe Norton 31 K. W. Swallow AJS 32 G. J. Canning BSA 33 P. McGarrity BSA 34 R. Dean Norton 35 N. Crossett AJS 36 W. R. Evans AJS 37 L. Rice AJS 38 N. Ellwood Velocette 39 S. McAvoy AJS 40 H. O'Reilly Norton 41 Morrie Low BSA
250 cc classification Pos Rider Manufacturer Laps Time Points 1 John Surtees NSU 13 1:06:00.4 8 2 Sammy Miller NSU 13 +24.0 6 3 Umberto Masetti MV Agusta 13 +1:16.6 4 4 Bill Lomas MV Agusta 3 5 Cecil Sandford Moto Guzzi 2 6 Hermann Paul Müller NSU 1 7 Arthur Wheeler Moto Guzzi 8 Percy Tait Velocette 9 Jimmy Herron Norton 10 Harold Kirby Velocette 11 Hans Haldemann Moto Guzzi 12 S. Hodgkins Excelsior 13 David Andrews Excelsior
References