RQ Riley's site is always a great resource. But I view his projects as the Ferrari's of the field, because his designs are very advanced for its time.
But the UrbaTrike reminded me of another dilemma. Electric drive? It definitely helps with the cG having the batteries between the front wheels, but you limit your vehicle to in-town use only. The UrbaTrike is with two rear wheels, I think two up front is the way to go.
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