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 ...

High quality pump has a unique flexible and retractable air hose that is useful for filling a motorcycle tire. The dual-action Mini-Versair pump works up to 20% faster than single-action pumps.

Small size means it’s easy to pack when touring. Valve adapter difficult to fit on some wheel designs. Somewhat difficult to maintain balance when pumping. Otherwise useful for adding a few pounds of ...

Years ago, PumpTire developed a self-inflating bicycle tire that used the compression of the tire on the ground to suck air inside. Unfortunately, the entire tire had to be replaced once it wore down.

Anyone who rides a bike would agree that flat or low-pressure tires are a drag. But why fiddle with a pump when the tire can inflate itself? San Francisco-based startup PumpTire has invented just such ...