PREMIUM E-Bikes - Re-Volt UAE
PREMIUM E-Bikes - Re-Volt UAE
When you look at prices of E-Bikes it's immediately apparent that central motor systems are far more expensive than hub systems. In fact there's practically no overlap between the cheapest central-motor and the top-of-the-range hub motor. So why the difference?

Central motors are much more complex than their hub equivalents. The latter is simply a motor in a hub – no gearing, just direct drive. The central-motor on the other hand is geared into the chain drive system, has a built-in freewheel (so the motor cannot be driven backwards by the pedals) and requires a custom frame built around its housing

Rather than using a simple motion sensor it has a torque sensor usually built into the crank. So if you pedal very gently the crank senses little torque and the motor stays off.

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