A Presta valve, also known as a French valve, is a type of valve used in bicycle tires. It is a thin, threaded valve that is inserted through the rim of the tire and secured with a nut. Presta valves are typically used on high-performance bicycles because they are lighter and more aerodynamic than Schrader valves. However, they can be more difficult to use, so it is important to know how to use them properly.
To use a Presta valve, you will need a Presta valve pump. These pumps have a special head that fits over the Presta valve and allows you to inflate the tire. To inflate the tire, simply attach the pump head to the valve and start pumping. You will need to pump the tire to the recommended pressure, which is usually indicated on the sidewall of the tire.
