Optibike Pioneer, Programming Manual, Page: 4 / 12

The wheel size is used for speedometer calibration. If the wheel size is
incorrect the speedometer reading will be off. The standard setting for the
Pioneer Allroad is 26 inch.
.
Max Speed
The second setting parameter is Max Speed. The Max Speed is the speed at
which the motor will no longer provide assistance. The interface is as below:
The max speed should be in accordance with local regulation speed. The max
speed range is between 12-40 KPH, ( 7.2 -24 MPH). Use UP or DOWN
b u t t o n t o s e l e c t t h e m a x i m u m s p e e d a n d t h e n confirm by
MODE . You will then enter into the backlight brightness setting screen.