Geoff Duke (pictured in 1951) won his last 500cc World Championship title in 1955.
The 1955 Grand Prix motorcycle racing season was the seventh F.I.M. Road Racing World Championship Grand Prix season. The season consisted of eight Grand Prix races in five classes: 500cc, 350cc, 250cc, 125cc and Sidecars 500cc. It began on 1 May, with Spanish Grand Prix and ended with Nations Grand Prix in Italy on 4 September.
1955 Grand Prix season calendar
Standings
Scoring system
Points were awarded to the top six finishers in each race. Only the four best races counted in the Sidecars, 125cc and 250cc, while in the 350cc and 500cc championships, the five best results were counted.
Position
1st
2nd
3rd
4th
5th
6th
Points
8
6
4
3
2
1
500cc final standings
Colour
Result
Gold
Winner
Silver
Second place
Bronze
Third place
Green
Points classification
Blue
Non-points classification
Non-classified finish (NC)
Purple
Retired, not classified (Ret)
Red
Did not qualify (DNQ)
Did not pre-qualify (DNPQ)
Black
Disqualified (DSQ)
White
Did not start (DNS)
Withdrew (WD)
Race cancelled (C)
Blank
Did not practice (DNP)
Did not arrive (DNA)
Excluded (EX)
Bold – Pole
Italics – Fastest Lap
350cc Standings
250cc Standings
125cc
Riders' standings
Race key
Colour
Result
Gold
Winner
Silver
2nd place
Bronze
3rd place
Green
Points finish
Blue
Non-points finish
Non-classified finish (NC)
Purple
Retired (Ret)
Red
Did not qualify (DNQ)
Did not pre-qualify (DNPQ)
Black
Disqualified (DSQ)
White
Did not start (DNS)
Withdrew (WD)
Race cancelled (C)
Blank
Did not practice (DNP)
Did not arrive (DNA)
Excluded (EX)
Annotation
Meaning
P
Pole position
F
Fastest lap
Rider key
Colour
Meaning
Light blue
Rookie rider
Constructors' standings
Each constructor is awarded the same number of points as their best placed rider in each race.
References
Haefliger, Werner. "Lightweight class". FIM MotoGP Results 1949–2023 Guide (2024 ed.). pp. 22– 24. ISBN 978-2-9701086-8-9 .
Büla, Maurice & Schertenleib, Jean-Claude (2001). Continental Circus 1949–2000 . Chronosports S.A. ISBN 2-940125-32-5
"The Official MotoGP website" . Retrieved 2010-07-06 .