Short answer – You control it by pedaling.
Rubbee X is controlled by an easy to install PAS (Pedal Assist Sensor) or in simpler terms – wireless cadence sensor. The sensor is mounted on the bicycle pedal crank and it provides information about when and how fast the person is pedaling. By knowing these things and combining them with the speed of the entire bike, Rubbee can control the amount of power independently without any user interference. When You are pedaling – Rubbee provides power. You stop pedaling – Rubbee stops providing power and starts freewheeling . Rubbee becomes a natural extension of Your muscle power. When a hill is encountered and Your speed is decreasing but pedaling rate increases Rubbee enables a higher power output. High speed and slow pedaling will have an opposite effect – a lower assistance level will be provided. Rubbee X makes these calculations and power modulations multiple times a second.
The maximum assistance power level of the ebike conversion kit can be controlled via the main button. Just press is to cycle through different power modes. ECO / CRUISE / POWER modes are available depending on how many batteries are installed. ECO is available with 1 installed module, CRUISE with 2 modules and POWER mode becomes available when all 3 battery modules are installed. These modes can also be changed via the smartphone application.