If the power consumption is very low, no bars are
displayed.
4.1.12 Switching the light on and o
If you are using the assistance and press the light switch,
this switches the lighting of the fast Pedelec on and o.
If you are riding with the lights on and switch o the
system, the lights also switch o automatically. You must
therefore switch the lights on again.
You must always take the battery with you, even if you
want to ride without assistance as the lights will only
work with the battery.
5 Assistance by the electric motor
If your Pedelec is equipped with hub gears, you may
have to take more load o the pedals when changing
gears than you would normally do when riding your
conventional bike. This is due to the additional power
output of the electric motor. The hub gear system
contains a device that protects it against gear shiing
operations under excessive loads in order to preserve
the gear unit in the hub.
5.1 Operating principle of assistance
The motor provides support as soon as you switch the as-
sistance on and start pedalling.
The thrust delivered by the motor depends on three factors:
• Your own pedalling eort
The motor adapts to the force you apply. If you
pedal harder, e.g. uphill or when setting o, the
power sensor detects this and increases the thrust
accordingly. However, the thrust is limited by the
maximum motor output.
• The assist level you have selected
With the "high assist level / HIGH" setting, the
power delivered by the motor is double your own
eort (1:2).
With the "medium assist level / Standard" setting,
the power delivered by the motor increases your
eort in a ratio of 1:1.3.
With the "low assist level / ECO" setting, the power
delivered by the motor is more than half your own
eort (1:0.75).
• The speed at which you are currently travelling
When you set o on your Pedelec, the assistance
increases as you build up speed until the bike
reaches its maximum speed of roughly 36km / h.
The assistance then reduces automatically until
you reach a speed of 45km / h when it switches o.
This applies for the largest gear only. In all other
gears, the motor switches o earlier, depending on
the gear ratio.
