Whether you're fixing a flat or simply keeping your bike in peak condition, correct tire inflation is an essential skill for cyclists to master. Though it's not difficult to inflate a tire, you should be aware of the requirements of your bike and chosen riding style. Different styles require different pressure levels. For example, freestyle BMX riders might want low-pressure wheels for added cushioning when pulling tricks. Road racers need rock-hard wheels to reduce the resistance on the road and let the bike travel faster.
Step 1
Locate the tire valve on your wheel. Unscrew the cap and check which kind of valve you have. Valves are either Presta or Schrader style. Presta valves are thin with a small screw at the top, while Schrader have a flat top and thicker body.
Step 2
Turn the wheel until you find written pressure recommendations. Most tires have instructions written on their sides, near the rim. Look for digits with the letters "PSI" next to them. This stands for pounds per square inch, a measurement of pressure.
Step 3
Fix the right type of connector to your pump and valve. If using a hand pump, screw the connector onto the valve first, then screw the other end to the pump. If using a floor pump, push the correct connector hub onto the valve. Angle the wheel so that the valve is at the bottom.
Step 4
Pump the handle in long, firm motions. If using a hand pump, hold the device vertically in line with the valve to avoid breaking the connection. Place floor pumps on the floor close to the wheel and keep steady with your feet.
Step 5
Feel the tire. When firm, unscrew or remove the pump connector and apply the pressure gauge to the valve. If you're using a floor pump, you may have a pressure gauge built-in to the device. Top up or deflate as necessary, according to the PSI recommendations on the tire.
Tips and Warnings
- If you find it difficult to pump with a Presta valve, detach the connector and ensure the small screw is loose. Press down on the screw to help air flow more easily. To let air out of a Schrader valve, push a screwdriver onto the pin in the middle of the valve. If you see inner tube poking out from underneath the main tire, deflate the tube slightly and push it back under.
- Do not use the electric car tire pumps that you see at garages. These are highly pressurized and will split your tire tube.
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