These are the known mechanical and performance specifications for your 2020 Yadea C1S.
Basic Specs

Engine
Displacement
TypeSide mounted motor
DetailsElectric
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
Fueling
Ignition
Exhaust
Lubrication
CoolingAir
Performance
Horespower8.1 HP (5.9 kW)
Torque
Top Speed80.0 km/h (49.7 mph)
Chassis
Frame TypeCold-rolled steeless frame
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionDual spring aluminium shocks
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1150 mm (45.3 inches)
Total Length1810 mm (71.3 inches)
Total Width700 mm (27.6 inches)
Ground Clearance
Wheelbase1270 mm (50.0 inches)
Dry Weight105.0 kg (231.5 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre90/90-12
Rear Tire/Tyre100/80-12
Front BrakesSingle disc. Hydraulic, 220 mm
Front Brake Diameter
Rear BrakesSingle disc. Hydraulic, 220 mm
Rear Brake Diameter
Wheels
Comments
72V 20Ah soft lithium battery. Range 100 km. Made in China.