Designed by Fabio Taglionii, this engine was enormously successful.
Engine: Single cylinder four-stroke OHC
Bore & stroke: 45 x 47 mm
Maximum power: 74.75cc
Power: 7 h.p. @ 10,500 rpm
Valve train: Gear-driven overhead camshaft, valves angle of 90 °, hairpin springs
Valves per cylinder: 2
Carburettor: Dell'Orto UA 18 BS3
Cooling system: Air-cooled
Ignition type: Battery / coil ignition
Lubrication: Forced with oil in the finned cup and coaxial gear pump to the ignition generator
Transmission: Gear primary, chain final
Clutch: Cable operated with multiple wet disk
Gearbox: 4 speed foot-change
Throttle: Cable operated
Frame type: Double tubular cradle frame
Suspension: Telescopic front fork with hydraulic damping
Rear Suspension: Dual Hydraulic shock absorbers
Front Brake: Light alloy drum brakes Ø 120 mm
Rear Brake: Drum
Front Tyre: 2.375 x 20 in.
Rear Tyre: 2.375 x 20 in.
Wheelbase: 1,200 mm
Seat: upholstered race seat with extended tail.
Top speed: Around 140 km/h (86.99 mph)
Weight: 70 Kg
Source: Hessink's NL