Presta Adapter Not Working

Since the stem on the presta is a lot narrower it allows for manufacturers to make narrower wheels and tires.

Presta adapter not working. Lots of info on how to inflate a tire with a presta valve with someone using this style for the first time to a few tricks a long time user. Learn how to use a presta valve adapter to inflate your tire using a regular air pump. They tend to hold air better than schrader valves. It s a bummer to get a flat and discover that your pump fits only schraeder valve stems.

I would like to know what the problem is and if i possibly need an adapter to corretly fit the valve. I m not really understanding the question or problem but just to ditto some of what s been said and add my own experience. This adapter screws on to a presta valve stem to convert it to a schraeder one. This for me was a cause of not being able to inflate the tires now i do it routinely.

I could not lock the pump nozzle to my presta valve because the nozzle was not fitting properly even after locking the clamp and was constantly coming out. If you don t have a bicycle pump that accommodates presta valves most allow both nowadays you could just screw on an adapter and inflate it using the pumps at the gas stations. Additionally i could not hard press the nozzle as it might damage my presta valve. Presta cycling valve adapter.