I bought the Swytch Brompton kit to extend the range of my Brompton bike, which I mostly use when flying a helicopter. When I land somewhere out of the airport, I use the bike to get to nearest town to get decent lunch and return soon enough to wait for my passengers to return. With Swytch kit I can head out 10+ miles without the fear of returning late or exhausted. Swytch kit turned my Brompton to a very meaningful extension mean of transport on my helicopter trips. It is also lightweight enough not to compromise the payload of the helicopter itself. I know that this is quite special case but both Brompton and Swytch are quite special products so it goes well together with special use cases. I would recommend this combination to any pilot who needs to solve his transportation needs out of home airport.