Technically, the 'ZigZag' by Daniel Castillo Builes is actually a tricycle, but I can't help but feel it's more like a unicycle with training wheels. This cool velocipede concept is particularly compelling for two reasons: one being its electric power capabilities; the other its unconventional form.
On the 'ZigZag' by Daniel Castillo Builes you can find the two supporting wheels on the back, as opposed to the tried and true traditional penny-farthing model. Made of aluminum alloy 6161 and strapped with two 24V batteries, a 350W hub motor and a storage rack, this three-wheeler can transport you 10 to 15 kmph.
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