A pedal-assist system is a feature found in many electric bicycles, or e-bikes, that helps riders by providing additional power while pedaling. This system uses sensors to detect the rider's pedaling effort and automatically adjusts the level of assistance, making it easier to ride uphill or cover longer distances without excessive fatigue. These systems typically offer multiple levels of assistance, allowing riders to choose how much help they want. The battery-powered motor engages when the rider pedals, enhancing the overall cycling experience while promoting physical activity and reducing the effort needed for commuting or recreational rides.