re: NuVinci shifting issues, in the midst of a ride today on a NuVinci-equipped bike that started out shifting normally / as expected, after I stopped at a red light (!), I resumed in the lowest setting and attempted to upshift. Instead of what I’m accustomed to, the pedals spun in the lowest setting while what I felt as I rotated the hand grip was similar to a conventional shifting cable when the nut-and-bolt that secure the cable to the derailleur loosens. The hand grip rotated through the full range to no effect. Once or twice before, I’ve found myself on a NuVinci-equipped bike that didn’t deliver the full shifting range to which I’ve become accustomed. In contrast, today, when the shifter failed, the hub defaulted to the lowest setting and stayed there. I was pedaling a fixie.

Dunno whether this description adds anything to what others have experienced. Further – this speaks to Motivate’s continued opacity – I haven’t a clue how frequent or rare this behavior is.