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It is essential to get your spokes checked and tightened after 300 miles. This is a free
service provided by your supplier. If this service has not been undertaken at the
correct time this may cause damage to the wheels and spokes that will not be covered
under our guarantee.
Getting the best range from your electric bike.
The range you can achieve from your Wisper electric bike can be reduced dramatically
for some very simple reasons. Im good conditions you should be able to achieve the
following ranges from your bike when using pedal assist.
14A battery 66 miles (110km)
8A battery 39 miles (65km)
To make sure you optimise your range please follow the guidelines set out below.
1 When using full throttle from stationary, your 250W motor will draw about 550W.
Consider that when cruising along at 15mph / 25kph, with mild pedalling, you only
draw about 150W hence, using pedal assist instead of full throttle from stationary
saves a good amount of power and will increase your range.
2
Check your tyre pressures. The rolling resistance on the road is at is least when the
tyres are at the correct pressure 60psi or 4.1bar. Half flat tyres can half your
range!
3
Air resistance is important if you are wearing big baggy clothes in the winter expect
lower range than in the summer when your clothing is less air resistant. Also
remember that panniers and bags on the handle bars reduce range.
4
Weight affects the range considerably. If you are carrying extra weight in your
panniers or towing you range will effected.
5
Battery temperature will make a serious difference in achievable range. It is best
to charge your battery at room temperature keep it indoors before you start your
journey with the maximum range available by loading a warm battery.
There are of course other factors such as bike maintenance, terrain, road conditions and
weather but if you keep the five points mentioned above in mind you will find your
range is massively improved.
Copyright January 2009 Wisper Ltd