General İnformation |
| Model |
BSA M 21 |
| Year |
1953 |
| Category |
Allround |
Engine and transmission |
| Displacement |
591.00 ccm (36.06 cubic inches) |
| Power |
15.00 HP (10.9 kW)) @ 4000 RPM |
| Bore x stroke |
82.0 x 112.0 mm (3.2 x 4.4 inches) |
| Fuel system |
Carburettor |
| Fuel control |
Sidevalves |
| Ignition |
Magneto |
| Transmission type, final drive |
Chain |
Chassis, suspension, brakes and wheels |
| Frame type |
Single cradle |
| Front suspension |
Hydraulic telescopic |
| Rear suspension |
Twin shock |
| Frame |
3.25-19 |
| Front tyre |
3.25-19 |
| Rear tyre |
3.25-19 |
| Front brakes |
Expanding brake (drum brake) |
| Rear brakes |
Expanding brake (drum brake) |
| Seat |
Dual |
Physical measures and capacities |
| Dry weight |
180.0 kg (396.8 pounds) |
| Power/weight ratio |
0.0833 HP/kg |
| Fuel capacity |
11.36 litres (3.00 gallons) |
Other specifications |
| Starter |
Kick |
