United Kingdom - British
Birmingham Small Arms - BSA Motorcycle WD M20
Serial Number: 103026
Registration Number: C5213726
History of Birmingham Small Arms - BSA Motorcycle WD M20 Serial Number: 103026
This War Department M20 is the 6209th of 8000 motorcycles produced for contract S2603 (December 1943 - July 1944). It was
produced and was delivered to the War Office, London in roughly May of 1944. Many of the BSA records were destroyed by
enemy action during WWII in England, so the exact date of production and delivery is not known. The year listed is based on
known BSA annual production contract numbers. The Registration Number: C5213726, was painted in white paint on both
sides of the front of the fuel tank, 9 inches long with letters 1.5 inches tall by 1 inch wide.
This BSA M20 complete frame, motor mounts, chain guard and rear wheel were obtained by QuestMasters in 2018. This M20
was found in Vermont, United States. The tire shown on the rear wheel is post-WWII. The original wartime paint is still present.
The wartime service of the M20 is currently unknown.
The Serial Number for all Birmingham Small Arms - BSA M20 Motorcycles is stamped on the left lower side of the frame just
behind the front fork tube. This 1944 BSA is marked WM20 103026.
This original wartime photo shows a 1944 BSA M20 Registration Number C5213661, marked with the stylised winged helmet
insignia, on the fuel tank, for the 1st Polish Armored Division - part of the 1st Canadian Army. This M20 was produced 65
motorcycles before the 1944 BSA M20 Serial Number 103026 Registration Number C5213726, in the QuestMasters Museum
collection.
Note the placement of the BSA logo and registration number on the fuel tank in this photo.
British Military Keycard No. 2, above photo. After WWII, the 1944 BSA M20 Serial Number 103026 Registration Number
C5213726 continued to serve in the British Military in Germany at 17 RVD BAOR (17th Rear Vehicle Depot, British Army Of the
Rhine). It received a new registration number of  93YC04, which replaced the original wartime C number. This motorcycle saw
military service through at least February 21st 1969, as seen on the last line of the above document.
This original wartime photo shows a British Sergeant riding a 1944 BSA M20 Registration Number C5213784, which is 58
motorcycles later than 1944 BSA M20 Serial Number 103026 Registration Number C5213726, in the QuestMasters Museum
collection.
Note the placement of the BSA logo and registration number on the fuel tank in this photo.
POST WWII SERVICE:
For more WWII BSA Motorcycle history, please visit The BSA W.D. M20 Website:
http://www.wdbsa.nl/index.htm
M20 103026 C5213726
BSA M20 Forks, or Girders, above two photos.
These forks were recently obtained in the United Kingdom for the restoration of M20 103026. The original wartime olive drab
paint is present under the post-WWII black paint. These forks are from M20 Serial Number 20563.
BSA M20 7805 Engine, above two photos.
This engine is from BSA M20 Deluxe Serial Number 7805, delivered to the War Office on October 26th 1939.
This engine was found in Michigan, United States and was painted in post-WWII olive green during rebuilding in 1952.
Although the engine is 4 years earlier than M20 103026, it will be used during the restoration.
BSA M20 7805 Engine rebuild plate, above photo.
This engine is from BSA M20 Deluxe Serial Number 7805, delivered to the War Office on October 26th 1939.
This engine was rebuilt on September 9th 1952 by 12 HEAVY WORKSHOP R.E.M.E. (Royal Electrical and Mechanical
Engineers), located at the previous Hanomag Truck Factory, Hannover Germany.
The rebuild added .020 to the main bearing.
BSA M20 7805 delivery document, above photo.
This document shows BSA M20 Deluxe Serial Number 7805, being delivered to the War Office on October 26th 1939 with
registration number C3934738.
The Tally Number 15635 currently has an unknown meaning.
The engine from 1939 BSA M20 7805 will be used in the restoration of 1944 M20 103026.
M20 7805 C3934738
BSA M20 7722 Registration Number C3931142, above photo.
The M20 Deluxe motorcycle shown is 83 motorcycles prior to BSA M20 Deluxe Serial Number 7805, which the above engine is
from.
This original wartime photo from the Imperial War Museum, shows a 1944 BSA M20 Registration Number C5213537, marked
with the stylised winged helmet insignia, on the fuel tank, for the 1st Polish Armored Division - part of the 1st Canadian Army.
This M20 was produced 189 motorcycles before the 1944 BSA M20 Serial Number 103026 Registration Number C5213726, in
the QuestMasters Museum collection. In this photo, Captain F. Perepeczko (left), 1st Polish Armoured Division, Normandy,
France 1944. The Serial Number of the Ford GPW or Willys MB Jeep is 33564.
Note the placement of the BSA logo, registration number and the Allied Star on the fuel tank in this photo.
BSA M20 Fuel Tank, above photo.
This M20 fuel tank was removed from M20 Serial Number 117108 and is shown unrestored in post-WWII civilian paint.  
This style of fuel tank has a "cut-off" section on the right rear of the tank. This was introduced to accommodate the "Vokes"
style air filter that was mounted on top of the fuel tank. The "cut off' tank is part no. 66-8211 and was introduced in 1943 for
M20 contract numbers S2603, S5209 and S7218, the end of WWII production.
BSA M20 Oil Tank, above photo.
This M20 oil tank was removed from M20 Serial Number 117108 and is shown unrestored in post-WWII civilian paint.
BSA M20 Tool Box, above photo.
This M20 tool box was removed from M20 Serial Number 117108 and is shown unrestored in post-WWII civilian paint.
BSA M20 Handle Bars, above photo.
This M20 handle bars were removed from M20 Serial Number 117108 and is shown unrestored in post-WWII chrome plating.
BSA M20 Skid Plate, above photo.
This M20 skid plate was removed from M20 Serial Number 117108 and is shown unrestored in post-WWII civilian paint.
BSA M20 Muffler or Silencer, above photo.
This M20 muffler is a post-WWII reproduction. The chrome plating will be removed prior to use and the mounting tab, shown
on the left, will be relocated to the center of the muffler.
BSA M20 Gear Box or Transmission, above two photos.
This M20 gear box was removed from M20 Serial Number 93874 and
will be used in the restoration of the QuestMasters
Museum
1944 BSA Serial Number 103026.