The SD-1 three wheeler has been designed to be an alternative to a motorcycle or scooter. It is more stable than a bike in slippery conditions, has seatbelts, and allows the operator and rider to sit side-by-side.

The SD-1 is very inexpensive to own and operate. It registers and insures as a motorcycle, sips gas, and uses common, off-the-shelf parts for easy service.

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