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P17: Adjusts the direction of
the pedal assist; setting '0'
indicates standard assist while
pedaling, and setting '1' reverses
the assist direction.
P18: Alters the display's speed
reading to show values between
50% and 150% of the actual speed,
allowing for calibration against
different wheel sizes or preferences.
P19: Enables or disables the use
of a neutral or '0' gear position;
setting '0' includes the '0' gear in
the gear sequence, while setting
'1' omits it.
P20: Refers to communication
protocols used by the device.
'0:2' likely indicates the default
or current protocol setting, with
1: “0:2 Protocol” and 2: “Protocol
2”. While 3: Backup.