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BSA WD B40
BSA B40 Motorcycle
 
 
IN MEMORY
 
 
Motorcycles for sale
WD B40 for sale
 
 
Parts for sale ENGINE
BSA WD B40 parts for sale
 
 
Parts for sale FRAME AND CHASSIS
BSA WD B40 parts for sale
 
 
Parts for sale ELECTRICAL
BSA WD B40 parts for sale
 
 
Ratio Rebuilds
BSA Unit Single rebuilds and engine services
 
 
The Rupert Ratio Unit Single Manuals for sale - immediate dispatch
 
 
Events
 
 
WANTED !
 
 
History
 
 
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 GD MK1 1970 Danish Army
 
 
Mitchell collection bike 15
BSA WD B40 MK1 GD - Danish Army 1968
 
 
Mitchell collection bike 16
BSA WD B40 MK1 1969
 
 
Mitchell collection bike 17
BSA WD B40 MK1 GB 1967
 
 
Mitchell collection bike 18
BSA WD B40 MK1 GB 1967
 
 
Mitchell collection bike 19
BSA B40 1965 - Civil Defence/AFS
 
 
Useful Links
 
 
WD B40's in service
 
 
Picture gallery
BSA WD B40 picture gallery
 
 
Guest Book
 
 
How to contact us
 
 
Other motorcycles in my collection
Non WD B40's
 
 

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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