ELI5: Explain Like I'm 5

NuVinci continuously variable transmission

Okay kiddo, let me explain the nuvinci continuously variable transmission to you in a way you’ll understand.

When you ride a bike, you pedal to go forward, and the chain on the bike moves the wheel to make you go. But have you ever had to change gears, making it easier or harder to pedal? Well, the nuvinci system is like that, but it’s more advanced.

Instead of a few set gears, the nuvinci system can change the ratio of the bicycle’s gears continuously, which means you don’t have set gear increments or steps. This is like having a bunch of gears all combined into one! With the nuvinci system, you can adjust the bike to make it easier or harder to pedal, depending on the terrain and how you’re feeling.

So, how does it work? Well, instead of using different gears like on a normal bike, the nuvinci system uses two rotating parts that are connected by a bunch of balls. When you twist the shifter, it changes the position of the balls, and this changes the gear ratio. And because it’s continuously variable, you can make tiny changes - like with a volume knob on a radio - between the lowest and highest gear.

So, with nuvinci, you can pedal your bike up hills more easily or go faster on flatter roads without taking your hands off the handlebars. And it’s all thanks to the nuvinci continuously variable transmission!