These are the known mechanical and performance specifications for your 2017 Linhai Aeolus PassportZ 50.
Basic Specs

Engine
Displacement49.50 ccm (3.02 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression
Bore/Stroke39.0 x 41.4 mm (1.5 x 1.6 inches)
Valves/Cylinder
FuelingInjection
IgnitionCDI
Exhaust
Lubrication
CoolingAir
Performance
Horespower2.90 HP (2.1 kW)
Torque3.00 Nm (0.3 kgf-m or 2.2 ft.lbs)
Top Speed
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity6.43 litres (1.70 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionUnit swing
Rear Travel
Seat
Seat Height739 mm (29.1 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase1,194 mm (47.0 inches)
Dry Weight78.0 kg (172.0 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre3.00-10
Rear Tire/Tyre3.00-10
Front BrakesSingle disc. Hydraulic.
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels


Comments
Chinese scooter. Sold in the US.