A friend of mine sent in a link to this new electric bike concept from New Zealand - the YikeBike. Its a little expensive at the moment (though not compared to a high-end road bike or mountain bike I guess).

Road.cc has a review - Yike bike - is the future a folding, electric, penny farthing?.

Let's play a word association game: electric bike, penny farthing, folder, carbon fibre, Porsche… hard to build a mental image from that lot, but one day… that list will immediately make you think “Yike Bike”. Maybe.

What we have here is a folding electric bike that weighs less than 10Kg with a range of about 10Km and that is as easy to charge as a laptop and not that much bigger when folded, which the team behind it hope will one day be the transport of choice of the style-conscious buisnessman or urban commuter for the short hops from penthouse apartment to downtown office. And as for the “Yike” – well, that's what you say the first time your ride it, or at least the cleaned-up version.