Built around E-max's scooter motorcycle platform, the 2009 E-max 90S features a purpose-built air-cooled electric configuration. In factory specification, peak output is rated at 5.4 HP (3.9 kW), transferring power to the rear wheel through a automatic gearbox.
On the scales, the 90S measures 151 kg (333 lbs) wet (curb), translating to a power-to-weight ratio of 0.04 HP/kg (27.96 kg per horsepower).
Within MotoLibrary's E-max archive, this model family spans 3 indexed model years from 2008 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power-to-Weight
0.04 HP/kg (27.96 kg/HP)
Engine
Engine TypeElectric
Engine DetailsElectric
Power5.4 HP (3.9 kW))
CoolingAir
Transmission
GearboxAutomatic
ClutchNo clutch
Performance
Top Speed60.0 km/h (37.3 mph)
Chassis
Front SuspensionOil/gas pressure
Rear SuspensionOil/gas pressure
Wheels & Brakes
Front Tyre130/60-13
Rear Tyre130/60-13
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight51.0 kg (112.4 pounds)
Weight incl.151.0 kg (332.9 pounds)
Power/Weight0.1051 HP/kg
Other
StarterElectric
Color OptionsBlack, grey, white, red, yellow, blue, green
Notes
4 x 12V 40AH silicone battery. 3-5 hours charging time. Range 45-60 km.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
