2013.Finally I have managed to construct a folder, two in fact that fit neatly in a standard suitcase without being dismantled. It took me almost a year to work out the folding design based on the Brompton folder. The Nippy is almost the same size as Brompton when folded, 60 x 60 x 30 cm, and similar in weight, 12kg.
It was a laborious work as every time I have modified one aspect of the design, another aspect had to be reworked. But the folders perform well and are very “Nippy’ indeed.
I have installed an electric power assist on one of them as I did on many of my other bents.