Gemini was selected as one of ExtraEnergy's" Five pedelec technology game changers" at Eurobike 2015
• Smooth, stepless ratio changes – Rider needs not change gears
• Constant cadence – Pedals turn at same speed regardless of slope or conditions
• Rider can vary the cadence on-the-go
• Fully integrated in one housing – Reduced number of components
• Sealed for life – high reliability
• Very silent operation
• "Smart bike" capable – GPS, Bluetooth, App control
Gemini is a ground-breaking, patented, hybrid propulsion system that enables the innovative combination of human power and battery power.
It is a totally automatic shiftless system that eliminates derailleur or hub gears, shifters, cables, dynamos, and torque sensors.
Gemini's two motor/generators act together with the human input, under highly sophisticated, patented, software control. The amount of electrical assist provided to add to the human input is varied by the controller - seamlessly altering the transmission ratio to respond to the operating environment.
By continuously adjusting the ratio as the conditions change (slope, speed, human effort etc) Gemini operates always at the optimum ratio and the rider pedals with the constant cadence of their choice
© Nexxt Drive Ltd