How do i inflate a presta valve

You'd think inflating a bike tire would be pretty simple. That is, until you take a look at your bike's valve.

The two most common valve types these days are Presta valves and Schrader valves. They use an internal spring to allow inflation while keeping the valve closed. You can inflate this style easily with any regular air pump. Presta valves are a lot narrower and are commonly found on higher end bikes with narrow rims. They are a little trickier to inflate as they use a manual locknut to open the valve for inflation.

How do i inflate a presta valve

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Sort by Oldest first Oldest first Newest first Most reactions. You can use a Presta valve or a Schrader valve. Determine the proper pressure range your tires need to be inflated to. A typical road bike needs 80 psi psi, while a mountain bike needs 25 psi psi. Before inflating your bike, make sure that there are no dust caps or plastic caps around the bike valve. All you need is a road bike pump adapter, especially for tubeless road bike tires that have a Presta valve in them. A Presta valve should be opened briefly before hooking up a pump to check that the valve opens easily and isn't sticking , but should then only open if air pressure is forcing the valve open. So no air is lost when pumping, even with a bad connection. This is an older thread, you may not receive a response, and could be reviving an old thread.

While riding my 29 inch mountain bike, spokes broke in the back wheel. There were actually cracks in the rim, originating from the spoke holes. Insert Quotes Quotes Post Reply.

The standard type of valve on most modern bike tires is called a "Presta valve" sometimes called a 'French Valve'. Unlike Schrader valves, which are common on some mountain bikes and all car tires, these types of valves are built to handle high-pressure tires, since the narrower valve stem increases the strength of the tube. Presta valves can be a little tricky to figure out when you are first working to fill one of them with air. The first step is to remove the black dust cover from the top of the valve. Set this aside somewhere it won't get lost.

Have you ever been out for a ride only to find your tire is flat? With these simple steps, inflating your tires will become second nature in no time. So if your bike needs some extra air, just follow along as we teach you all about Presta valves and how to properly use them. Inflating a Presta valve requires some specialized equipment. The first item is a presta valve adapter, which allows an air pump to be attached directly to the valve.

How do i inflate a presta valve

You'd think inflating a bike tire would be pretty simple. That is, until you take a look at your bike's valve. Enter, intimidation. The most common type of bike valve is called a Presta, and it's a long, cylindrical piece of metal that sticks out from the bike's tire. It has a small tip at the end.

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All you need is a road bike pump adapter, especially for tubeless road bike tires that have a Presta valve in them. Shimano Crank Recall Latest post 4 weeks ago. Sort by Oldest first Oldest first Newest first Most reactions. It will turn in a circle and move upward until it's at the top of the thread. Both the old and new are TLR, but I run with tubes. Before inflating your bike, make sure that there are no dust caps or plastic caps around the bike valve. The brake is internally routed through the frame. Please consider creating a new thread. You're good to go! See our Privacy Policy for more information. With used bikes crossing your path you should just expect it to be bad. Discuss this topic in the Bicycle Repairs and Mechanics Forum. I pushed the internal brake cable through the hydraulic brake hose, while it was still in the frame. You can inflate this style easily with any regular air pump. Then replace the cap.

Then, before I had reached the trailhead, I noticed my rear tire was significantly low.

Here is what I did. The first step is to remove the black dust cover from the top of the valve. If no air comes out, your job is done. Notice that you can now let air out by depressing the locknut. So no air is lost when pumping, even with a bad connection. All you need is a road bike pump adapter, especially for tubeless road bike tires that have a Presta valve in them. Now, grasp the top of the valve and gently unscrew turn to the left -- remember, lefty loosie, righty tighty the brass cap at the top of the valve. Harley Davidson Pan America Forum. Meanwhile, I was considering ye olde vulcanised patch repair to the inside of the tyre and superglue to the outside, but I'm thi Screenshot loading Related Videos.