http://organicengines.com/the-sensible-utility-vehicle-aka-the-suv/ Needs motors
TRICYCLES are much easier to haul cargo with than bikes because of the slow speed balance problems when climbing hills. Even if you have a good trailer, balancing perched on top of two wheels can be a real work out even with extra low gears. Trikes are much better for heavy electric power systems that can be as much as 50lbs or more (because of the amount of batteries needed to get anywhere) Recumbent bikes are easier to travel long distance because they are not hard on your wrists and back, but you just can’t beat a mountain bike for climbing hills with a trailer, unless you have a motor on a recumbent trike.
COLD & RAIN: it’s a pleasure to ride a bike in the rain if you can stay dry! Layers of florescent yellow hydro wick “safety high visibility” (wearguard.com) and/ or lightweight snugly woven merino wool base layers, vapor barriers like silk and nylon can be too cold when you stop pedaling in really cold weather (you need the moisture to leave the skin ASAP! If you sweat don’t use cotton in the winter. A loose fitting breathable rain jacket with removable arms, ski gloves (mittens with glove liners below 40), rag wool sox and waterproof running boots (arctic boots below 25) will help. But it’s easier to stay dry on a ubiquitously standard bike by using a rain poncho; they breathe better than a jacket.
LIGHTS. L.E.D ‘emitter’ technology (a small square yellow chip) has solved the brightness problem of solid-state lighting. Also known as high-flux LED they are sold in flashlights for as little as $25 (shiningbeam.com) and bicycle lights for $60 and up. I need at least 250 lumens (nite-hawk.com) on a dark road with no streetlights. They are also available in 12volt DC and will be in 120 volt AC soon.
PUNCTURE PROOFING TIRES: There is nothing worse than getting flat tires in cold wet weather, especially at night, I found a way to make sure it doesn’t happen: take an old tire (or new) slightly smaller than the one you use, and cut off both beads and most of the side walls with a coping saw. Used with extra thick tubes they are better than any tire liner ever made, the more hard bulk there is the more protection you have, use tires like Schwalbe Marathons on wide rims. Armadillo tires may be good enough by them self’s, but I use two extra tires per wheel. Most Kevlar belted tires are not puncture proof. Green slime and their liners are a total waste of money. Don’t believe the Nihilists.