Freeflow E-Bike Engineering Case Study

Freeflow – Electric Bike

Project Brief…

To design an electric bike with a prime focus being the development of drivetrain system. The client was looking for a novel approach in delivering power. It was up to us to design and package the motor, gearbox and battery into a much smaller volume.

This project was awarded to 4c Design. I worked on it during my employment with the company.

Design Development...

Freeflow Technologies sourced a unique combination of motor and gearbox. This allowed for a compact, efficient and powerful electric bike design. My role was to integrate this system into a bike. It was most significantly a mechanical engineering exercise to design a complex gearbox assembly. One which could fit inside an expanded bottom bracket. The innovative element of the design was how the gearbox separates the pedal drive and motor drive, while still utilising the same drive train. This is a unique system amongst electric bikes that makes riding much more intuitive and easier for the rider. While also creating a much more compact unit, whereby the bike uses many more standard components.

The Result...

This design has been internationally patented. The project was taken from conception to a working prototype. I’m certain the prototype is still being ridden around the Glasgow streets today! Freeflow Technologies are tweaking the final spec of this bike so it should be available soon.