BSAB21 de Luxe 1937 - 1939
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.
BSAB21 de Luxe 1937 - 1939 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 |
| Gearbox: |
4-speed, manual |
| Clutch: |
dry |
| Primary Drive: |
- |
| Final Drive: |
chain |
| 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 |
| 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 |
| Front: |
- |
| Rear: |
- |
Related BSAB21 de Luxe 1937 - 1939 info
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