These are the known mechanical and performance specifications for your 2021 Yadea C1S.
Basic Specs

Engine
Displacement
TypeBrushless Hub motor
DetailsElectric
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
Fueling
Ignition
Exhaust
Lubrication
CoolingAir
Performance
Horespower8.1 HP (5.9 kW)
Torque
Top Speed60.0 km/h (37.3 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 Height1240 mm (48.8 inches)
Total Length1790 mm (70.5 inches)
Total Width695 mm (27.4 inches)
Ground Clearance
Wheelbase1270 mm (50.0 inches)
Dry Weight93.0 kg (205.0 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre90/90-12
Rear Tire/Tyre100/80-12
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesSingle disc
Rear Brake Diameter
Wheels
Comments
60V 20Ah soft lithium battery. Range 70 kmChargingtime 8h Made in China.