Segment: Clasic
Production years: 1937, 1938, 1939
3 Photos
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.
BSA B21 de Luxe 1937-1939
BSA B21 de Luxe 249
| engine specs | Type: | air-cooled, four-stroke, single cylinder, OHV | Displacement: | 249 cm3 | Bore X Stroke: | 2.5x3.1 in OR 64 mm | Compression Ratio: | - | Horsepower: | 5/3000 KW(hp)/RPM | Torque: | 0/- lb-ft/RPM OR 0 Nm/RPM | Fuel System: | Amal side float carburetor |
|---|
| transmission specs | Gearbox: | 4-speed, manual | Clutch: | dry | Primary Drive: | - | Final Drive: | chain |
|---|
| chassis specs | Frame: | steel | Front Suspension: | single spring girder fork | Rear Suspension: | hard-tail, sprung seat | Front Brake: | none | Rear Brake: | hand lever and foot pedal working independently on rear wheel dummy rim |
|---|
| dimension specs | Overall Length: | - | Overall Width: | - | Seat Height: | - | Wheelbase: | 62 in OR 1575 mm | Ground Clearance: | 4.9 in OR 124 mm | Weight: | - | Fuel Capacity: | 3.6 gallons OR 13.6 L |
|---|
| tyres specs | Front: | - | Rear: | - |
|---|