A separately excited motor allows for a bit of "gearing" despite the single speed transmission. It's a cool project that deserves some recognition. Remember the DIY Segway that we showed you?

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Enter [HowToLou], who has given his go-kart a reversing option by the addition of an electric motor. It’s an extremely simple arrangement, the motor is a geared 12 V item which drives a V-belt ...

Convert a gas go-kart to electric of course ... has had no end of trouble with his build. In the first video, [Robert] works with a common no-name motor controller and tries to run the motor ...