A bicycle that goes at 50mph? Surely bikes are meant to be pushed at 2mph, while eating an ice cream and tipping your hat to passers by? But then I’m old-skool that way.

Curtis DeForest isn’t, so he invented the HyperBike, which is a cross between the Penny Farthing and those big balls that you can strap yourself into to roll down hills (zorbing, I think it’s called).