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In this article, we're diving into the world of pedal assist systems (PAS) and exploring why Delfast chose to integrate them into our e-bikes. If you've ever wondered what a PAS system is, how it works, or whether it's truly necessary, this piece will give you a clear understanding.
An electric bike is essentially a hybrid between a traditional bicycle and an electric scooter. It combines human power with motor assistance, creating a more efficient and sustainable mode of transportation. But why do we still need pedals if there's a powerful motor?
Historically, early electric bikes were designed with pedals because the motors were weak and unreliable. Pedals served as a backup in case the motor failed or when extra power was needed, like climbing hills. However, as technology advanced, motors became stronger and more reliable, making pedals seem less essential. That said, many riders still prefer the feel of pedaling, even with motor assistance.
This is where the Pedal Assist System (PAS) comes into play. The PAS system detects when you're pedaling and provides additional power from the motor, making your ride smoother and more efficient. It’s not just about convenience—it’s also about safety, especially in countries like those in Europe, where PAS-equipped e-bikes are required for integration into regular bike infrastructure.
There are different types of PAS systems available. One common design uses a sensor that reacts to pedal rotation and a magnetic ring. This setup sends a signal to the controller, which then activates the motor. While it’s simple and reliable, it has some limitations—like not allowing direct speed control and sometimes delivering a sudden "kick" when you start pedaling.
For riders who rely more on pedaling than throttle, torque-based PAS systems are a better fit. These systems measure the force you apply to the pedals and adjust motor output accordingly. Brands like Bosch and Shimano have developed highly sophisticated versions of these systems, offering a seamless blend of human effort and electric assistance.
At Delfast, we believe that a well-designed PAS system enhances the riding experience while improving battery efficiency. By reducing peak loads on the battery, it helps extend its lifespan, which is especially important since batteries are one of the most expensive components of an e-bike.
Whether you're commuting through the city or exploring off-road trails, a pedal assist system adds value by making your ride more intuitive, efficient, and enjoyable. So, why did Delfast choose to include it? Because we believe that the future of e-bikes lies in the perfect harmony between human power and electric assistance.
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