Random web surfing about geared hubs brought me here.
I find the NuVinci hub very ingenious and was telling to myself that Justin could easily adapt this system to a unicycle, attaching the NuVinvi externally to the wheel, and guess what…
He actually did it, look at this video
And HERE is the thread
Unfortunately, because of the freewheel/back pedal forces issue, it appears that the NuVinci hub is not fully transposable to unicycles, at least as it is set, I’m not sure to understand why (or if) the “balls” idea isn’t transposable to a non-freewheel unicycle hub, but it would be so great to have an infinite amount of gears between low and high gear on a unicycle, especially with a shifting system on the handlebar.