List of BSA motorcycles

Last updated

[1] [2] This is a list of British manufacturer Birmingham Small Arms Company (BSA) motorcycles from the 1930s until the end of the marque in the 1970s. The list is tabulated by engine type and period.

Contents

V-twins

ModelEngineFirst yearLast yearNotes
Model E770cc cc19191924 side-valve V twin
G30-G35985 cc19301935side-valve
G14985 cc19361940side-valve
J34, J35, J12499 cc19341936 overhead valve
Y13748 cc19361938overhead valve

B series

A 1933 BSA B1 motorcycle at the Auburn Cord Duesenberg Automobile Museum in Auburn, Indiana, U.S.A. 1933 BSA B1 motorcycle.jpg
A 1933 BSA B1 motorcycle at the Auburn Cord Duesenberg Automobile Museum in Auburn, Indiana, U.S.A.

The B-series were single cylinder models of 250 cc, 350 cc and 500 cc. After the Second World War only 350 cc and 500 cc overhead valve models were continued.

ModelEngineFirst yearLast yearNotes
B33-1 - B35-1, B1249 cc19331936side-valve
B33-2 - B35-2, B2249 cc19331936overhead valve
B33-3 - B35-3, B3 Blue Star 249 cc19331936overhead valve
R33-4 - R35-4, R4349 cc19331936overhead valve
R33-5 - R35-5, R5 Blue Star 349 cc19331936overhead valve
W32-6, W33-6, W34-7, W35-6, W6499 cc19321936side-valve
W32-7, W33-7, W34-8, W35-7499 cc19321935overhead valve
W33-8, W34-9, W35-8 Blue Star 499 cc19331935overhead valve
W33-9, W34-10, W35-9499 cc19331935overhead valve
B20 Tourer249 cc19371938side-valve
B21 Sports249 cc19371939overhead valve
B22 Empire Star249 cc19371938overhead valve
B23 Tourer348 cc19371939side-valve
B24 Empire / Silver Star348 cc19371939overhead valve
B25 Competition348 cc19371939overhead valve
B26 Sports348 cc19371939overhead valve
B29348 cc1940overhead valve
B30overhead valve
B31348 cc19451959overhead valve
B32348 cc19461957overhead valve
B33499 cc19471960overhead valve
B34499 cc19471957overhead valve

M series

In the 1930s the M series was a mixture of overhead valve and side-valve models. During and after the Second World War only the side-valve models of this series were continued, typically for use by the armed forces or in sidecar combinations.

ModelEngineFirst yearLast yearNotes
M33-10, M34-12, M35-10, M10596 cc19331936side-valve
M33-11, M34-13, M35-11596 cc19331935overhead valve
M19 Deluxe349 cc19371938overhead valve
M22496 cc19371939overhead valve
M23 Silver Star/Empire Star 496 cc19371940overhead valve
M24 Gold Star496 cc19381939overhead valve
M20 496 cc19371955side-valve. Thousands of this model were supplied to the British Army
M21591 cc19371963side-valve. The UK's Automobile Association used this model in sidecar combinations
M33499 cc19471957B33 overhead valve engine in M series plunger frame for civilian sidecar work

Pre-unit C series

A BSA C10L at Wirral Transport Museum, Birkenhead 1956 BSA C10L motorbike, Wirral Transport Museum, Birkenhead (geograph 4533742).jpg
A BSA C10L at Wirral Transport Museum, Birkenhead

The C-series were 250 cc single-cylinder models & a 350 cc side-valve model for 1940 only

ModelEngineFirst yearLast yearNotes
C10250 cc19381953side-valve engine
C11250 cc19391953overhead valve engine, dynamo electrics
C12sv350 cc19401940side-valve engine, dynamo electrics, girder Forks, ridged rear,
C11G250 cc19541956overhead valve engine, alternator instead of dynamo
C12 250 cc19561958overhead valve engine, swinging arm suspension
C10L250 cc19531957side-valve engine

Bantam series

All Bantams were single cylinder two-stroke machines

ModelEngineFirst yearLast yearNotes
D1 Bantam125 cc19481963

Bantam De Luxe 1949 starting March 24 becomes the BD1 in 1950 BD1 bantam 1950–1953

Early examples had rigid frames; later models had plunger suspension
D3 Bantam Major150 cc19541957All-welded swinging arm frame - some had plunger rear suspension
D5 Bantam Super175 cc19581958All-welded swinging arm frame similar to D5
D7 Bantam Super175 cc19591966Swinging-arm frame with separate rear subframe bolted on
D10 Silver Bantam, Bantam Supreme, Bantam Sports and Bushman175 cc19661967Some models had four-ratio gearbox
D14/4 Bantam Supreme, Bantam Sports and Bushman175 cc19681969All models had four-ratio gearbox
D175 Bantam Sports and Bushman175 cc19691971With C15 front forks and centrally located spark plug

Unit-construction singles

ModelEngineFirst yearLast yearNotes
C15 250 cc19581967
C15T250 cc19591965
C15S250 cc19591965
SS80250 cc19611966High-performance version of C15
B40 350 cc19601965
SS90350 cc19621965High-performance version of B40
B44 GP 441 cc19651967the first unit single with oil-bearing frame. Used super strong/lightweight Reynolds 531 tubing aimed at competition use
B44 VE "Victor Enduro" 441 cc19661970
B44 "Victor Roadster" 441 cc19661970From 1968 to 1970, called "441 Shooting Star"
B40WD350 cc19672,000 for Ministry of Defence
C25 Barracuda 250 cc1967Original UK designation for the Starfire
B25 Starfire 250 cc19681970Higher performance model developed from the C15
B25FS Fleetstar 250 cc19681971Made with low-compression engine to increase reliability and fuel economy for police and civilian fleet use
B25SS Gold Star 250 250 cc1971Oil-in-frame model developed from the Starfire
B25T Victor Trail 250 250 cc1971Off-road oil-in-frame model developed from the Starfire
B50SS Gold Star500 cc19711972
B50T Trail500 cc19711972
B50MX Motorcross500 cc19711972In 1974 sold as Triumph TR5MX for US

Post-War twins

All BSA parallel twins were pushrod operated overhead valve machines. The A7 and A10 models were semi-unit construction until about 1953 and pre-unit construction thereafter. All A50, A65 and A70 models were unit construction.

ModelEngineFirst yearLast yearNotes
A7 500 cc19471962BSA's first parallel twin. Called "Flash" in the US after 1954
A7S Star Twin 500 cc19491954Tuned version of the A7
A7SS Shooting Star 500 cc19541962Tuned A7 in swinging arm frame
A10 Golden Flash 650 cc19501962BSA's first 650 cc parallel twin. Known as "Royal Tourist" in the US from 1960
A10 Super Flash650 cc19531954Limited edition for homologation for production racing in the USA
A10 Road Rocket 650 cc19541957Tuned version of "Golden Flash"
A10 Spitfire Scrambler650 cc19571963Tuned off-road racer (US only)
A10 Super Rocket 650 cc19581963 Amal TT 'racing' carburettor and new "357" full-race camshaft
A10 Rocket Gold Star 650 cc19621963Special - tuned Super Rocket in a Gold Star frame. Known as "Gold Star Twin" in the US
A50 Star 500 cc19621970Also called "Star Twin" and "Royal Star" Called "Royal Star" in all markets from 1966 onwards
A50C Cyclone Road500 cc19641965Tuned version of A50 Star (US only)
A50C Cyclone Competition500 cc19641965Tuned off-road version of A50 Star (US only)
A50C Cyclone Clubman500 cc1965Special for production racing
A50 Wasp500 cc19661968Replacement for off-road Cyclone Clubman and available in all markets
A65 Star 650 cc19621966Sometimes called "Star Twin". Called "Royal Star" in the US
A65R Rocket650 cc19641965Sports model with 9:1 compression, separate headlight, and sports mudguards. Known as "Thunderbolt Rocket" in the US
A65T Thunderbolt650 cc19661972Single carburettor. From 1971 had oil-bearing frame
A65L Lightning 650 cc19641972Twin carburettors. Known as Lightning Rocket in the US before 1966. From 1971 had oil-bearing frame
A65 Spitfire Hornet 650 cc19641967Twin carburettor off-road racer.(US only) Known as "Hornet" from 1966
A65LC Lightning Clubman650 cc1965Special for production racing
A65S Spitfire650 cc19661968High performance model produced in Mk II, Mk III and Mk IV versions
A65F Firebird Scrambler650 cc19681971Twin carburettors. From 1971 had oil-bearing frame, high level exhaust pipes on left hand side [3]
A70L Lightning750 cc1971Limited edition for homologation for production racing in the USA
Fury 350 cc19711972Prototype only (never produced)
T65 Thunderbolt650 cc1973Rebadged Triumph TR6 Trophy

Triples

See Triumph Triples for corresponding Triumph models)

ModelEngineFirst yearLast yearNotes
A75R Rocket Three750 cc19691972
A75RV Rocket Three750 cc197119725-speed gearbox (only three produced in 1972)

Miscellaneous

Model nameEngineFirst yearLast yearNote
Model L 349 cc19231935Overhead-valve, sidevalve & sloper versions
Slopers L 349 cc - S 493 cc - H 557 cc19271935L 27-28 only, S 27–35, H 28–33, various configurations, OHV, SV & Twin Exhaust
A30-1, A30-2175 cc two-stroke19291930Unit-construction model in two-speed and three-speed versions respectively
Winged Wheel35 cc two-stroke19531955In-hub engine for bicycle
Dandy70 cc two stroke19561962Lightweight scooter
Sunbeam 175 cc two-stroke or 250 cc four-stroke19591965Scooter
Beagle75 cc four-stroke19631965Lightweight motorcycle
Brigand/Beaver/Boxer/GT5050 cc two-stroke1979British frame designed by B.J. "Bertie" Goodman, with Italian Franco Morini engine

See also

References

  1. Book of the BSA Vol I & II
  2. BSA Sales Cataogues 1927 to 1935
  3. Robert Smith (May–June 2006). "BSA Firebird 650 Scrambler". Motorcycle Classics. Retrieved 20 August 2009.