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How to Inflate Bike Tires Without a Pump

Using A CO2 Cartridge

    Step 1

    Attach the CO2 cartridge to the nozzle. If you have a cartridge with a threaded neck, screw the neck of cartridge into the nozzle. If you have a cartridge with a smooth neck, insert the neck of the cartridge into the nozzle.

    Step 2

    Check your tire. If it is completely flat, fit the nozzle snugly onto the valve stem, open the nozzle and let the air flow for only a second or two. Close the nozzle and inspect the wheel to see that the tire is seated properly. If the tire is not completely on the rim, adjust it with your hands.

    Step 3

    Open the nozzle and fill the tire. Different size cartridges will put different amounts of air in your tires. For example, a 25-gram cartridge will be enough to fill both tires on your mountain bike, but not enough to fill both tires on a road bike. Learn what size cartridge you need for your tires when you buy the cartridges.

    Step 4

    Close the nozzle and pull the nozzle off the valve. Pull up as straight as possible to avoid damaging your tube.

Manually Blowing Up A Tire

    Step 1

    Wipe the valve of your tire off with your shirt or other piece of cloth.

    Step 2

    Blow a small amount of air into your tire. Use your tongue to press on the valve to keep it open as you blow. Inspect the wheel to see that the tire is seated properly. If the tire is not completely on the rim, adjust it with your hands.

    Step 3

    Continue to inflate the tire by mouth. This takes time and is awkward, but it's better than being stranded.

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Things Needed

  • CO2 cartridge for bicycles
  • Nozzle with control valve

About the Author

Based in Portland, Ore., Tammie Painter has been writing garden, fitness, science and travel articles since 2008. Her articles have appeared in magazines such as "Herb Companion" and "Northwest Travel" and she is the author of six books. Painter earned her Bachelor of Science in biology from Portland State University.

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