MAHLE SmartBike Systems | M40
The MAHLE M40 strikes a remarkably well-balanced combination of power, weight and integration for the eMTB segment. With a total system weight of just 5 kg – 2.5 kg for the motor and 2.5 kg for the iM5 battery, excluding remote and display – it generates an impressive 105 Nm of torque and up to 850 W of peak power. This results in an outstanding power density of 340 W/kg, with a gear ratio of 600%. Features like Auto Hold, Dynamic Overrun and a high-resolution speed sensor ensure precise control, stability and a natural ride feel across all types of terrain. One standout innovation is the system’s ability to automatically adjust motor output based on your heart rate – an intelligent solution that enhances both comfort and training efficiency. While the display and app still feel underdeveloped and the system overall gives off a somewhat prototype-like impression, the technical direction is clear. MAHLE aren’t positioning the M40 as an end in itself, but as a platform designed to empower brands and make rider data meaningfully usable. The jury recognises this approach as a pioneering step toward the next generation of lightweight eMTB systems.