The Pedal-Assist System (PAS) is an operating mode on an electric bike that provides power from the motor to help riders pedal easier and ride faster. PAS’s usually works with a sensor mounted on the bottom bracket or pedal crank arm. PAS activates motor only when the user pedals the e-bike.
Different e-bikes have different PAS level settings starting from 1:1 to 1:5. When a rider pedals an e-bike, the sensor senses that you are pedalling and activates the motor to provide the rider with a certain level of power resulting in a smoother transition to pedalling. This may feel like a slight push as you ride and also motivates the rider to pedal naturally without stress on the knee joints. You can achieve more speed with the same level of your efforts by simply increasing the PAS level to higher levels.
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