Don't like paying for pressurized air for your bike tires? Don't like energy inefficient vehicles? Make this automatic bicycle pump on the cheap and steal from a car. Instructables user Aleksi shows ...
[Asia Economy Reporter Jong-il Park] Nowon-gu (District Mayor Oh Seung-rok) has installed automatic bicycle air pumps to promote bicycle use. Bicycles are economical and good for health, and the ...
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