Fitted as standard with a powerful 3000W hub motor, the E-F11 is restricted to 45kph, the equivalent of a 50cc petrol model. Nippy and agile, it is able to dart and weave through city streets and down country roads with ease. With a 72V super strong 20Ah 'silicon' lead acid battery, the E-F11 can travel up to 50km between charges (depending on load, terrain, conditions etc.). The hub motor has the advantage of reduced noise and, equally important, the direct drive means that there is no loss of energy via a chain....all the power goes to the drive wheel. With 'silicon' lead acid and lithium battery options.