The pin in the center is a spring-loaded check valve that controls airflow in and out. Schrader valves (sometimes called American Valve, Auto Valve, or A/V) are often wrapped in rubber (when used on wheels) and the outer wall is threaded to accept a cap or pump head. Schrader: These valves are wider than a Presta valve and typically have the same circumference from top to bottom.Why do different bikes use different valve systems? And how do they compare to one another? Here’s everything you need to know about bicycle tire valves so you can keep rolling without setbacks.īicycle tubes with Presta (left) and Schrader (right). If you see a slender valve with a knurled end, this style is called a Presta valve. If when pumping your tires you see a valve similar to those used on car tires, that’s called a Schrader valve.
If you don’t know which style of valve your bike uses, this overview helps you figure out which valves are on your bike, and how to maintain them. Getting to know your tire valves has some serious value, considering this knowledge could keep you from ruining a ride.
Which Pump Should I Use with These Valves?.What Types of Bike Tire Valves Are Available?.
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