These are the known mechanical and performance specifications for your 2017 Sachs Oliver 500.
Basic Specs

Engine
Displacement
TypeBLDC-engine in rear wheel
DetailsElectric
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
Fueling
Ignition
Exhaust
Lubrication
CoolingAir
Performance
Horespower0.67 HP (0.5 kW)
Torque
Top Speed20.0 km/h (12.4 mph)
Chassis
Frame Type
Rake
Trail
Front SuspensionSprings
Front Travel
Rear SuspensionSprings
Rear Travel
Seat
Seat Height780 mm (30.7 inches) If adjustable, lowest setting.
Alt. Seat Height940 mm (37.0 inches) If adjustable, highest setting.
Total Height
Total Length1,430 mm (56.3 inches)
Total Width
Ground Clearance
Wheelbase
Dry Weight42.0 kg (92.6 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre1.20-8
Rear Tire/Tyre1.20-8
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesSingle disc
Rear Brake Diameter
Wheels
Comments
12 Ah Silicium-Akku, 12 Ah Lithium-Ionen-Akku, or 20 Ah Lithium-Ionen Akkuu. Sachs is also called SFM-bikes. Sold in Germany.