delightfulcycles: Aussie invention, the Chappelli NuVinci features an infinitely variable multi-spee
delightfulcycles: Aussie invention, the Chappelli NuVinci features an infinitely variable multi-speed drive train (that is, one can change steplessly through an infinite number of gear ratios, rather than being confined to any number of predefined gear ratios) (via NuVinci) -- source link