Amp Hours, a measure for stored electrical energy, used to describe the size of a battery and indicates how far your bike will travel.
Specialist motor manufacturer producing well regarded electric bike hub motors which are renowned for being extremely quiet with a very high torque output.
Amps, short for amperes indicates the amount of energy flowing through an electrical device, like an electric bike motor.
The amount of assistance provided by the motor - can be none, 20%, 50%, 80% or even 100% and can be varied by the rider.
To be safe, the power to the motor should be cut when the brakes are applied, so e-bike brake levers have cut-off switches.
Old motors had "brushes" to make physical electrical connections to the windings that produce the electro-magnetic fields which make the motor turn. These are inefficient and prone to wear! Modern "brushless" motors use positional sensors that signal when to switch winding circuits.
Electric Bikes need a controller to manage their speed, power output and controls, such as the throttle, pedal sensor and brake cut-offs.
Some electric bikes have their motor in the centre of the bike, driving the crank. They can be noisey, being attached to the hollow frame which can act as a "sound box".
Is a term to describe a 2 wheeled electric vehicle which can be a pedelec, speed pedelec, electric moped, scooter or motorbike, each with legal restrictions for power, speed and controls.
All products have to conform to standards and bikes in particular must prove their safe design. Europe has defined standards EN 14764 for City and Trekking Bicycles and EN 14766 for Mountain Bikes, the 2 most popular pedelec styles whose electric components must also conform to EN15194.
... is a standard for European pedelecs and gives criteria and testing standards for the legal classification and treatment as a bicycle. Any pedelec must also conform to EU bicycle construction standards.
A type of motor built into the hub of a wheel.
Li-ion is a type of battery technology, used by modern Lithium type batteries. Noted for being light and reliable, especially in colder climates.
LiFePO4 is also known as Lithium Iron Phosphate and refers to a battery type that is heavier and bulkier than other Lithium technologies, but which has a greater longevity.
Most electric bike motors work when the pedals are turned and so have "pedal assist".
So the controller knows when the pedals are being turned a small sensor is used, attached to the crank. This sends a signal to the controller which starts the motor.
...is a low powered electrically assisted bicycle which uses pedals rather than a throttle and is restricted to 15mph. In the UK it is classed as a bicycle rather than a moped or motorbike as long as the speed and power is restricted (15mph, 250W).
... or "Speed" pedelec is a class faster and more powerful than permitted in the UK without VOSA testing for safety, a tax disk, registration plate and ridden on the road only by an insured, helmeted owner, who should have an appropriate license.
A twist grip on the right side of the handle bar that provides instant power to the motor - great for setting off into traffic!
A more complicated form of pedal sensor measures the force (or Torque) a rider uses on the pedals and so varies the power at the motor.
W is a measure of power provided by an electric bike motor
Watt Hours (WH) is a measure of the amount of energy within a battery.
Watt Hours (WH) is an alternative measure of the amount of energy within a battery (Amp Hours - AH - is another). WH takes the battery voltage into account, calculated by multiplying the battery Voltage and its capacity AH to give WH. Our standard battery is 36 V X 10 AH = 360 WH.
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