This is one unique looking bike, that you can have built by special order to the original spec at Condor in London. Originally built by Paris Cycles in 1947 it became an icon on the British cycling scene in the 1950s and is reputed to be very aerodynamic. The unique double top-tube was designed to make the frame more rigid and eliminate whip. It was also probably one of the first frames to start using larger dimension tubing to increase strength. Condor revived it in the 1980s and still sell it today by custom order.