| Date of manufacture | 1955 – 1962 | |||
| Bodywork type(s) | 2 Seater “Motocoupe” | |||
| Engine | Type | 1 cylinder four-stroke, air cooled | ||
| Capacity | 245cc | |||
| Bore x stroke | 68mm x 68mm | |||
| Power | 12bhp @ 5800rpm | |||
| Compression | 6.8:1 | |||
| Carburettors | 1, Bing 24 mm side draught | |||
| Valve design | Overhead | |||
| Valve gear | Camshaft in block. Push rods, rockers, tappets and springs | |||
| Electrics | 12 volt, “Dynastart” system | |||
| Transmission | Clutch | Dry single disc | ||
| Gearbox ratios | ||||
| 1st | 4.35:1 | |||
| 2nd | 2.22:1 | |||
| 3rd | 1.52:1 | |||
| 4th | 1.17:1 | |||
| Axle ratio | 2.31 | |||
| Synchromesh | None | |||
| Chassis | Frame | Tubular & box section | ||
| Suspension | Front: Leading trailing arms, coil springs and hydraulic dampers | |||
| Rear: Quarter elliptic leaf springs, single hydraulic damper | ||||
| Steering | Worm & nut | |||
| Brakes | Front & rear: hydraulic | |||
| Handbrake: cable on rear wheels | ||||
| Dimensions | Wheelbase | 1500mm | ||
| Track front/rear | 1200mm/520mm(with twin rear wheels) | |||
| Length/width | 2285mm, later 2355mm x 1380mm | |||
| Tyres | 4.80 x 10 | |||
| General | Fuel capacity | 13 litres | ||
| Max speed | 53 mph | |||
| Number produced | 74,312 | |||
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