Calibrating the Automatic N380 Shifting System:
1. Turn system power on
2. Pedal the bicycle lightly through the entire calibration procedure:
3. Press and hold the "mode" button (the silver/chrome button on the shifter) until the rear hub begins shifting (5-7 seconds typically), then release the button.
4. Continue pedaling lightly while the system shifts from "low" to "high" ratio multiple times and completes the calibration.
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