Or at least tested by a well known 3rd party. There's been quite a bit of research on bicycle efficiency, if this worked I'd expect it to be big news in variou

Or at least tested by a well known 3rd party. There's been quite a bit of research on bicycle efficiency, if this worked I'd expect it to be big news in various bike research related circles. For now I'm quite dubious, especially the claim that it gets more efficient the faster you go.