BSA B21 de Luxe
|BSA B21 de Luxe|
air-cooled, four-stroke, single cylinder, OHV
|Bore / Stroke||63.5mm x 63.5mm|
|Horsepower||4.96 HP (3.7 KW) @ 3000RPM|
|Transmission||Gear box: 4-speed, manual
Final Drive: chain
|Suspension||Front: single spring girder fork
Rear: hard-tail, sprung seat
Rear: hand lever and foot pedal working independently on rear wheel dummy rim
|Wheelbase||62.01 inches (1575 mm)|
The bike has a 4-speed, manual transmission. Power was moderated via the dry.
Stopping was achieved via none in the front and a hand lever and foot pedal working independently on rear wheel dummy rim in the rear. The front suspension was a single spring girder fork while the rear was equipped with a hard-tail, sprung seat. The wheelbase was 62.01 inches (1575 mm) long.
1937 - 1939 BSA B21 de Luxe
The 1947 BSA B21 de Luxe comes with a single, sprung seat, a large fuel tank, a pea-shooter single exhaust system, wire-spoked wheels, a large headlight, a spring-loaded girder front fork, a hard-tail rear, a black steel frame and a rear luggage rack.
In the engine department it sports a four-stroke, air-cooled, 249cc, single cylinder powerhouse paired to a four-speed manual transmission and can produce 2.5 horsepower at 3000 rpm.