Engine and transmission
Displacement: 49.70 ccm (3.03 cubic inches)
Engine type: Single cylinder
Stroke: 2
Power: 4.40 HP (3.2 kW)) @ 6500 RPM
Torque: 4.70 Nm (0.5 kgf-m or 3.5 ft.lbs) @ 6000 RPM
Bore x stroke: 40.0 x 39.3 mm (1.6 x 1.5 inches)
Fuel system: Carburettor
Lubrication system: Separate with automatic mixer
Cooling system: Air
Gearbox: Automatic
Clutch: Automatic dry centrifuge type
Ignition: Electronic CDI
Starter: Electric & kick
Physical measures
Weight incl. oil, gas, etc: 80.0 kg (176.4 pounds)
Wheelbase: 1,230 mm (48.4 inches)
Overall length: 1,760 mm (69.3 inches)
Overall width: 720 mm (28.3 inches)
Chassis and dimensions
Front suspension: Upside-down fork with 30 mm stanchions
Rear suspension: Hydraulic single shock absorber, co-axial adjustable coil spring
Front tyre dimensions: 120/70-12
Rear tyre dimensions: 130/70-12
Front brakes: Single disc
Front brakes diameter: 190 mm (7.5 inches)
Rear brakes: Expanding brake (drum brake)
Rear brakes diameter: 110 mm (4.3 inches)
Speed and acceleration
Other specifications
Fuel capacity: 5.60 litres (1.48 gallons)
Color options: Red, black
Comments: Also called Stalker NKD. Piaggio HI-PER2 engine.
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