Specialized Inner Tube - 700c x 20-28 - Presta Valve

Presta valves are narrower and designed for higher-pressure tires, commonly found on road bikes. Schrader valves are wider and often used on mountain bikes and cars. These Specialized tubes are for Presta valves.

Unscrew the valve cap, then unscrew the small nut at the top of the valve. Press down briefly to release any pressure. Attach the pump head, and inflate to the recommended PSI on your tire.

700c refers to the wheel size, a common size for road bikes and some hybrid bikes. The 'c' designation relates to an older French tire sizing system.

It is recommended to check your tire pressure before each ride, and inflate the tire accordingly. Tires can lose pressure over time.

Measure the depth of your rim. The valve stem should extend past the rim far enough to attach a pump.

These tubes are designed for use with standard tires. If you have tubeless-ready tires, you would typically use a tubeless setup.

Locate the puncture, clean the area around it, roughen the tube with sandpaper, apply a patch with rubber cement, and let it dry before inflating the tire.

Check the tire and tube for punctures. Locate the puncture, and either patch the tube or replace it. Also, inspect the valve for leaks.

You may have the wrong valve length. Replace the tube with one that has a longer valve stem.

Ensure the tire bead is seated correctly on both sides of the rim, and carefully insert the tube without pinching it between the tire and rim.