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Tricycle for Quad Amputee


Metro Makeathon




Mandy is a quadruple amputee and a motivational speaker. The prosthetics that she uses limit the range of motion in her knee, so she cannot use standard or recumbent bicycles. Mandy’s challenge is to create a device or adaptation to allow her to ride either a bicycle or tricycle.


Mandy’s team combined two existing bike frames to make her a new tricycle. Adaptations included a mechanism to allow for back pedal brakes and gears, an electric motor, and new pedal and handlebar placement to allow her better control and reach with prosthetics. The bike was also painted bright red on Mandy’s request.

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Safety Information

To download a digital product file containing open source instructions on how to build the design solution, read and agree to the terms and conditions below.

All digital product files on this page are provided as conceptual designs and were developed by volunteers through a TOM: Melbourne event or program.
The design file is provided in the interest of sharing ideas and promoting collaboration. The design as described in the document(s) has not been tested or assessed for safety. Please do not attempt to use any device built using these instructions without first seeking appropriate professional advice on the safety and suitability of the device for your personal situation. 
TOM: Melbourne are unable to advise on the suitability of any design or device for your personal situation, however if you have general questions relating to the instructions or documentation, please contact us via our  email:


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