| MODEL | BSA DANDY 1957 - 1962 |
| Year | 1957 - 1962 |
| Engine Type | Two stroke, single cylinder |
| Displacement / Capacity | 70 cc / 4.27 cu in |
| Bore X Stroke | 45 x 44 mm |
| Compression Ratio | 7.25:1 |
| Cooling System | Air cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | Kick start or hand operated |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 2-Speed with pre-selector |
| Clutch | Dry plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Open loop, seam-welded steel pressings |
| Front Suspension | Leading link fork, 63.5 mm / 2.5 in travel |
| Rear Suspension | Coil springs, 63.5 mm / 2.5 in travel |
| Front Brakes | 4 in drum |
| Rear Brakes | 4 in drum |
| DIMENSION SPECS | |
| Overall Length | 1702 mm / 67 in |
| Overall Width | — |
| Overall Height | 838 mm / 33 in |
| Seat Height | 724 mm / 28.5 in |
| Wheelbase | 1143 mm / 45 in |
| Ground Clearance | 114 mm / 4.5 in |
| Dry Weight | 38.6 kg / 85 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 2.5 x 15 in |
| Rear Tyre | 2.5 x 15 in |
| FUEL SYSTEM | |
| Fuel Capacity | 3.4 Litres / 0.9 US gal |
| Fuel Consumption | — |
| Top Speed | 50 km/h / 31 mph (approx.) |
The Dandy was BSA's small step-through two-stroke moped, shown in 1955 but only sold from 1957. It used a pressed-steel open frame, a two-speed pre-selector gearbox and 15-inch wheels, and was aimed at cheap urban transport. It stayed on sale until the early 1960s.
