This instructable gives an overview of building two small cars from the ground up, both powered by electric bike motors. The build includes chassis, fibreglass body, steering and drive train. The cars are designed for efficiency to extract the maximum performance from a 1hp motor and were used to compete in an electrathon competition. It can be built for around $1500 including motor, controller and the latest lithium batteries and will go flat out around 50km/h for 1 hour before recharging.
Similar in size to a gokart, Roadbot 3 and Roadbot 4 have streamlined bodies, minimal frontal area and low rolling resistance tyres. They are powered by brushless DC electric motors and a lithium battery packs.
They were built to compete in the Perth EV Challenge in Western Australia by the River Raiders team.
Licensed under "CC BY-NC-SA"
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