NuVinci Nfinity N380 Internally Geared Rear Hub, 32H, Black, Disc  Comp Features 15-tooth upper and 19-tooth

Features 15-tooth upper and 19-tooth lower

ultimately making it a purpose-built machine to help you stay fit and healthy

Hammer Gel energy gels are 100% pure complex carbohydrates

multi-directional precision fit for improved performance

Borrowing technology from Renthal's championship winning motocross handlebars

NuVinci Nfinity N380 Internally Geared Rear Hub, 32H, Black, Disc  Comp Features 15-tooth upper and 19-toothThe N380s continuously variable transmission allows you to change the gear ratio in one continuous motion just twist the shifter and the gear ratio is changed to any ratio within its 380% range. Whether pedaling under a load, shifting while stopped or waiting at a stoplight, The N330 will shift and is eBike and Belt Drive compatible. Shifter and cog sold separately,380% Nominal Ratio 0. 5 underdrive to 1. 9 overdrive 380% Nominal Ratio 0. 5 underdrive