By Heather Kelly, CNN
There's only so much you can fit inside one of those cute woven baskets found on the common bicycle: a small bag of groceries, fresh-cut flowers and a baguette, maybe a puppy.
But the new 2X4 cargo bike from NTS Works is built to haul up to 100 pounds of goods and, with the help of its electrical-assist engine, go as fast as 20 miles an hour.
The bike, a cross between a bicycle, motorcycle and beast of burden, is the brainchild of California bike designer Neal Saiki. He hopes the $4,800 2X4 will catch on with regular people running errands, as well as companies that deliver packages, fruit boxes, pizzas and other goods in urban areas.
Enterprising riders around the world have used the humble bicycle to haul freight for more than 100 years. They creatively balance large loads or small families on two wheels, often modifying a bike's design to accommodate specific hefty cargo.
These "cargo" or "freight" bikes are still in use in many places where cars and gas remain too expensive, or where the roads are so small or congested that a bike is a more efficient way to get around. They're especially popular in Europe, where some manufacturers have added electrical engines to boost the bikes' hauling power and assist riders up hills. FULL POST