
BSA WD B40 BSA B40 Motorcycle
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Motorcycles for sale WD B40 for sale
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Technical Information
Official MOD up dates and modifications
Engine number prefixes - Identification
BRASS PLATE NUMBERS EXPLAINED BSA WD B40 Contract numbers
AUSTRALIAN B40 AWD - GA
WD B40 Prototype Early BSA WD B40
B40 Military Mk2 and Roughrider By Rupert Ratio
Mitchell Collection Bike 1 BSA WD B40 Mk1 1967
Mitchell Collection Bike 2 BSA WD B40 Mk1 1967
Mitchell Collection bike 3 BSA WD B40 GR Mk1 1970 RAF
Mitchell Collection bike 4 Mk2 M (Jordanian Army) 1968
Mitchell collection bike 5 WD B40 Prototype 1965
Mitchell collection bike 6 BSA WD B40 MK1 GN 1969 Royal Navy
Mitchell collection bike 7 BSA WD B40 GB 1969
Mitchell collection bike 8 BSA WD B40 MK1 GB 1970
Mitchell collection bike 9 BSA WD B40 MK1 1969 GN Royal Navy
Mitchell collection bike 10 BSA WD B40 MK1 1970
Mitchell collection bike 11 BSA WD B40 1969 GN Royal Navy
Mitchell collection - bike 12 BSA AWD B40 GA MK1 Australian Army 1967
Mitchell collection Bike 13 BSA WD B40 MK1 GN 1969 Royal Navy
Mitchell collection Bike 14 BSA B40 GR MK1 1970 Royal Air Force
Mitchell collection bike 15 BSA WD B40 MK1 GD - Danish Army 1968
Mitchell collection bike 16 BSA WD B40 MK1 1969
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Engine number prefixes - Identification

B40FT B40 Military - 1965
B40GA WD B40 Australian Army MK 1 - 1967
B40GB WD B40 British Army MK 1 - 1967-70
B40GN WD B40 British Navy MK 1 - 1969
B40GR WD B40 British Air Force MK 1 - 1968 - 70
B40M B40 Military MK 2 - 1968-69
B40GD WD B40 Danish Army MK 1 - 1967-68
B40GD WD B40 Danish Army MK 1 - 1969-70

From 1969 onwards date prefixes were added.

The first letter denotes the month:

A January
B February
C March
D April
E May
G June
H July
J August
K September
N October
P November
X December

The second letter gives the year from August to July:

C 1969
D 1970
E 1971
G 1972
H 1973
J 1974

BSA WD B40 Engine

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