The BSA Dandy motorcycle was produced from 1957 to 1962. It had a 70 cc, 2-stroke, single cylinder engine with a bore and stroke of 45 x 44 mm and a compression ratio of 7.25:1. The bike had both a kick start and a hand-operated start. The clutch was a dry plate and the transmission had 2 speeds with a pre-selector. The final drive was via chain. The frame was constructed from steel pressings and was an open loop, seam-welded construction. The front suspension was a leading bottom link fork and the rear suspension used coil springs. The front and rear wheels were both 2.5 x 15 inches in size and had drum brakes measuring 4 inches. The bike had a top speed of around 50 km/h or 31 mph, and came in light green, honey beige, and dark lavender grey colors. The fuel capacity was 3.4 L or 0.9 US gallons, and the dry weight was 38.6 kg or 85 lbs.
Technical specifications:
Make Model: BSA Dandy
| Year | 1957 – 62 |
|---|---|
| Engine | Two stroke, single cylinder |
| Capacity | 70 cc / 4.27 cub in. |
| Bore and Stroke | 45 x 44 mm |
| Compression Ratio | 7.25:1 |
| Cooling System | Air cooled |
| Exhaust | Single, steel, silencer finished in heat resistant silver-aluminium paint |
| Starting | Kick start or hand operated |
| Clutch | Dry plate |
| Transmission | 2-Speed with pre-selector |
| Final Drive | Chain |
| Overall Gear Ratios | 1st 17.3 / 2nd 8.9:1 |
| Frame | Open loop frame constructed from steel pressings, seam welded |
| Front Suspension | Leading bottom link fork |
| Front Wheel Travel | 63.5 mm . 2.5 in. |
| Rear Suspension | Coil springs |
| Rear Wheel Travel | 63.5 mm / 2.5 in. |
| Front Wheel | 2.5 x 15 in |
| Rear Wheel | 2.5 x 15 in |
| Front Brake | 4 in., drum |
| Rear Brake | 4 in., drum |
| Dimensions | Length: 1702 mm / 67 in. Height: 838 mm / 33 in. |
| Wheelbase | 1143 mm / 45 in. |
| Ground Clearance | 114 mm / 4.5 in. |
| Saddle Height | 724 mm / 28.5 in. |
| Dry Weight | 38.6 kg / 85 lbs |
| Fuel Capacity | 3.4 L / 0.9 US gal. |
| Top Speed | 50 km/h / 31 mph (approximate) |
| Colours | Light green, Honey beige, Dark lavender grey |
| Source | Iceni cam mag |
