Freight bicycle

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Freight bicycles, carrier cycles, freight tricycles, cargo bikes, or bakfietsen, are human powered vehicles designed and constructed specifically for transporting large loads. Vehicle designs include a cargo area consisting of a steel tube carrier, an open or enclosed box, a flat platform, or a wire basket.


These are usually mounted over one or both wheels, low behind the front wheel, or between parallel wheels at either the front or rear of the vehicle. The frame and drivetrain must be constructed to handle loads several times that of an ordinary bicycle. Other specific design considerations include operator visibility and load suspension. Many, but not all, cycles used for the purpose of vending export goods or goods are cargo bicycles.


An early example of freight bicycles was heavy-duty standard bicycles, with heavy carriers at front or rear, sometimes with a smaller front wheel to accommodate a large front carrier. During the early part of the 20th Century these were commonly used by tradespeople for local deliveries. In the UK this style is still sometimes known as a butcher's bike or delibike, although the Post Office have by far the largest fleet; a more formal name is Porteur bicycle. Modern freight cycles still vary quite widely, with many old types still in production as well as a certain amount of new invention, and are often being tailored to particular applications.




References:

1.http://en.wikipedia.org/wiki/Freight_bicycle



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