Solution: Just clear any obstructions and make sure the central part of the valve returns to the top of the motion. I’ve seen things as simple as a small piece of debris clamp a valve down and cause it to release air. Sometimes the spring can get pinned, causing the tire to continuously release air. Schrader valves release air when the central pin is pushed down against the spring. Presta valves will have a metallic stem with another round screw in the top, twist it left to open the valve. Solution: You can tell if you have a Presta valve by looking at the air inlet for the tire. I use Presta valves, here’s what they look like (in the open position) on my bike: ![]() ![]() Opening a Presta valve is very simple, but if you’re new to them, it’s an easy step to forget. If you have a Presta valve, then you’ll need to make sure it’s open before you can fill the tire. Solution: If this seems to be your problem, jump to this section below for more information about connecting your pump properly. You’ll notice that it’s very hard to pump and the tire probably won’t be receiving any airflow. When the pump isn’t in line properly, it just results in backpressure in the pump and the release of air around the stem. If you’re new to using a bike pump (or just haven’t used one in a while), then you may have it in the wrong position.īike pumps and valves can be a little bit finnicky, and you’ll need to make sure you have a clean connection in order for the airflow to work like it’s supposed to. The following are five common reasons that a bike tire won’t inflate. You’ll need to know what’s going on before you can fix the problem. ![]()
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