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battery voltage sag

Why Does My E-Bike Speed Plateau? 5 Common Causes Explained

Short Answer: E-bike speed plateaus commonly occur due to motor power limits (e.g., 250W vs. 750W), battery voltage drop under load, speed restrictors (like EU-mandated 25 km/h caps), rider weight/topography demands exceeding motor capacity, and firmware limiting torque curves. Mechanical …