Engine: Single cylinder, 2-stroke
Bore & stroke: 39.4 x 41 mm
Engine Capacity: 50cc
Maximum power: 1.5 h.p. / 4,500 rpm
Cooling system: Air cooled
Battery: 6V - 18W
Lubrication: Wet sump forced circulation with mechanical gear pump
Transmission: Gear primary, chain final
Clutch: Cable operated with multiple wet disk
Gearbox: Manual 3-speed, gear shift
Throttle: Cable operated
Frame type: Open cradle tubular and pressed steel
Front Suspension: Telescopic shocks
Rear Suspension: twin shock, swingarm
Front Brake: Drum
Rear Brake: Drum
Front tyre: 2.00 x 2.4 in.
Rear tyre: 2.00 x 2.4 in.
Seat: Dual seat
Fuel tank capacity: 10 litres
Fuel consumption: 1 litre per 60 km.
Top speed: 45 km/h (27.96 mph)
Weight: 50 kg
This 'Prototype' 1957 Atala 50 Super Sport Special is the only known example with a Demm engine.
Source: Hessink's NL