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The Mahle X20 PAS Sensor (5 mm max. diameter) is a key component for ensuring smooth, natural assistance on Mahle X20-equipped e-bikes. As a pedal assist (PAS) sensor, it monitors your pedaling activity and sends precise signals to the motor system, so support is delivered exactly when you need it. Designed specifically for the compact and lightweight Mahle X20 platform, this sensor helps maintain the responsive, intuitive ride feel that riders expect from modern e-road, e-gravel, and urban e-bikes.
With its slim 5 mm maximum diameter, the Mahle X20 PAS Sensor is easy to integrate neatly into the frame or drivetrain area, keeping your bike’s appearance clean and uncluttered. It is engineered for reliable performance in everyday use, from commuting in the city to longer weekend rides. Replacing a worn or damaged PAS sensor with this original Mahle part helps restore accurate motor engagement, improves efficiency, and ensures that your e-bike continues to deliver consistent, predictable assistance over many kilometers.
