Electric bike
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'Whizz up hills' on fast e-bike

8 August 2014 Last updated at 11:03 BST

A prototype electronic bike (e-bike) which has a battery pack integrated into the frame has been developed.

The Vanmoof 10 Electrified has a top speed of 18 mph (29 km/h) and a range of up to 37 miles depending on traffic, weather and the rider's cycling style.

BBC Click's Spencer Kelly finds out more.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.