Brakes - Wisper 705 Classic 2013 Owner's Manual

The Wisper pedelec system simply detects that the pedal cranks are turning and any continued
forward motion of the cranks will result in the bicycle's electronics proving the full level of assistance
selected on the handlebar display regardless of rider input effort. Hence in certain situations, where
little rider effort is being provided, the range can be reduced.
The optimum range is achieved when the rider pedal effort is maximized and an ideal situation is for
the rider to aim to match the power being provided by the bike on an equal basis.
The battery capacity indicator is provided to give an approximation of battery capacity remaining.
Each bar (LED) approximates to a ¼ of the capacity. However, this indicator relies on sensing battery
voltage that will rise and fall depending on the amount of power being demanded at any given time,
ambient temperatures etc, hence the meter should only be used for indication purposes.
The battery capacity indicator, built into the top of the battery (four LEDs) provides a similar
indication and operates on the same principle.
Under heavy power situations (full throttle or high levels of assist) the battery voltage will
temporarily dip resulting in the capacity meter showing a lower level of charge. When that heavy
power is reduced, the capacity meter may rise again as the battery naturally recovers its voltage.
During the discharge period of the battery, the voltage will drop from an initial voltage of nearly 42
Volts to a minimum of 31.5 Volts. The bulk of the discharge period will be in the range of 38 to 36
Volts which provides the optimum performance for the bicycle. Hence due to this wide range in
voltage, the performance of the bike will vary depending on the state of charge of the battery. To
achieve the best possible performance, it is better to start a journey with a fully charged battery and
to recharge it if possible as soon as the capacity indicates less than ½ capacity remaining.

3.7 Brakes

3.7.1 Hydraulic disc brakes are fitted to the front and rear wheels of the bicycle. Hydraulic disc
brakes offer several advantages over traditional rim brakes, including better braking in wet, muddy
or other adverse conditions, less braking power fade over extended downhill braking and the ability
to continue braking even if your rim becomes bent or distorted.
3.7.2 The brakes are fitted with cut-out switches that are required by law. This means that when
you pull on either the back or front brake lever, the motor immediately stops working.
18