“Pterosail is a small start-up company that has designed a unique vehicle: it’s a custom-made recumbent trike. that incorporates a sail and an electric-assist motor“.
Via Treehugger
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“Pterosail is a small start-up company that has designed a unique vehicle: it’s a custom-made recumbent trike. that incorporates a sail and an electric-assist motor“.
Via Treehugger