I stumbled across this video last week, it appears to be a recently new idea and I have to say it looks a really promising design. It did get me wondering why it hadn’t been done before. It can be a pain fiddling around with the chain, not every wheel change is a quick and grease free process. It would certainly suit the leisure cyclist with little or no bike maintenance skills.
I’m sure the the frame and wheel builders amongst you will have an opinion – I’d love to hear all your thoughts.