How To Replace a Clogged or Bent Presta Valve Core on a Tubeless Tire in 2022 (Updated! 4K)

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In this video, you'll learn how to replace a clogged, bent or broken presta valve core. In addition, you'll see what tools are needed and how to use each of the various types of valve core removal tools. There's also an example of a perfectly working presta valve for reference. This video applies to most road bikes, gravel bike and mountain bikes.
If you have any questions, please leave a comment in the comment section and I'll be happy to do what I can to help! - Mark
This video is NOT sponsored. Some product links are affiliate links which means if you buy something, I'll receive a small commission.
--- Valve Core Tools and New Valve Cores ---
Stan's NoTubes Core Remover Tool: amzn.to/3EhKTLF
20 Piece Presta Valve Core Replacement: amzn.to/3hOXQov
VANICE Presta Valve Core with Remover Tool: amzn.to/3GyIZbY
VANICE Presta Valve Core Removal tool and Core Kit: amzn.to/3EFlD33
---- Cameras and Gear Used to Shoot This Video ----
Sony A6600: amzn.to/3V6Z0u0
Sony 16-35mm Vario-Tessar T FE F4 ZA OSS E-Mount Lens: amzn.to/3OeiElm
SMALLRIG Cage for Sony Alpha A6600: amzn.to/3EBDib1
FEELWORLD FW568 V2 5.5 inch DSLR Camera Field Monitor: amzn.to/3AmZx2M
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RØDE VideoMic NTG Camera-Mount Shotgun Microphone: amzn.to/3TLWMik
Neewer Ring Light Kit: amzn.to/3OfzUXu
Time Codes
0:00 Intro
0:16 How Do I Know It's Clogged
1:15 Tools Needed
1:47 Removing The Valve Core
3:40 Installing A New Valve Core
4:14 Properly Working Valve Core
4:28 Summary
-As an Amazon Associate I earn from qualifying purchases

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Опубликовано:

2 июл 2024

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Комментарии : 143

@TivonSanders Год назад

I really needed this video. I've been seeing so many people "remove" the core the ghetto way (which was them only removing the lock nut so the small pin can move freely into the tube) to inject sealant in, but that wasn't "professional" enough for me. This is the proper, and best way. Thanks!

@TheMarkList Год назад

You're welcome! Wanted it simple and easy to understand!

@SayantanAuddy 2 года назад

Nice clean video. Just the information I needed. Thanks :)

@TheMarkList 2 года назад

any time! and just an fyi, if you're running tubes, some tubes you can replace the valve core and some you can't (they're fixed)... if that's the case, you'll need to replace the entire tube.

@jbteecha785 Месяц назад

Thank you! I had a bad valve core but didn't really know it, I tried to pump up the tire and it just backed up into the pump like you explained. I didn't have a clue how to fix the problem until I watched your video. So I ordered a little kit with the tool and valves and I will try to fix it. Thanks again!

@TheMarkList Месяц назад

You're very welcome! Happy to help!

@sergei7502 2 года назад

Just want to say thank you for the information. I'm new to biking, and your video helped me out.

@TheMarkList 2 года назад

Let me know if you have any questions about anything else!

@craigscott3133 5 месяцев назад

Can’t tell you how long I’ve ridden with bent valves, worrying about them breaking. You made the solution simple. Thanks!

@TheMarkList 5 месяцев назад

Good to hear! They're super easy to replace and inexpensive too.

@hKBFC90 10 месяцев назад

This was super helpful and took me a few mins like you said. Thanks!

@TheMarkList 10 месяцев назад

You're welcome! Glad it helped!

@Sally-anneCox Месяц назад

Great Video, clear instructions, Thank you.

@TheMarkList Месяц назад

You're so welcome!

@DavidLoweimages 2 года назад

Great video, very informative and helpful.

@TheMarkList 2 года назад

thanks Dave! appreciate the feedback

@virkelie2 Год назад

Your explanations are very clear.

@TheMarkList Год назад

Thanks for the comments and compliment! I try to be as clear as possible..

@mitch-ur1ip Год назад

Appreciate the detailed explanation. Thank you!

@TheMarkList Год назад

You're welcome!

@w7i7n7k7 Год назад

Great simple video, just what I needed to see. Thanks!

@TheMarkList Год назад

Glad it helped! Let me know if you need help with anything else. Happy to post a video on it..

@63Baggies Год назад

Totally agree with Winston. mark absolutely 'nailed it' his presentation was engaging , clear and concise.😀

@TheMarkList Год назад

@@63Baggies Thanks for you kind words! Let me know if there's anything else you'd like me to do a video on. Got a few on deck but i'm here for you guys!

@j908w2 2 года назад

Great video, thanks for the help!

@TheMarkList 2 года назад

any time! hope it helped!

@martincondit3724 7 месяцев назад

So helpful. Thank you :)

@TheMarkList 7 месяцев назад

You're welcome!

@VincentGB Год назад

Super useful. Thank you!

@TheMarkList Год назад

You're welcome!

@justins6938 2 года назад

Mark, Nice simple video and great info on replacing a presta valve. Had watched a different video that had indicated if the presta valve was bent , the entire tube needed to be replaced., which didn't make sense to me. So well done!

@TheMarkList 2 года назад

Justin, it depends on your tube and/or if you're running tubeless. A new core is less than a buck and super easy to replace. Some tubes you can replace it. Just be careful not to twist too hard as to damage the tube - if it is indeed removable. I've been running tubeless on my gravel, enduro and dh bike and haven't used a tube in ages... so I'd have to actually grab a tube to check and confirm it's doable! Hopefully it is!

@manoz6194 Год назад

Some cheaper tubes don't have removable cores though

@CodeSolid Год назад

Nice and clear. Good job. Liked.

@TheMarkList Год назад

Thanks for the kind words!

@nniikkooll 2 года назад

First day on my new bike w tubless prestas and I blew out the valve. Never ever had that with Schraders. Thanks dude 👍 helpful vid.

@TheMarkList 2 года назад

Glad I could be of help! let me know if you need help with anything else... happy to do a video on it!

@gerardhoward3084 Год назад

Thanks for posting very helpful

@TheMarkList Год назад

You're welcome! Glad it helped you out

@roberthall7307 Год назад

Excellent video - thanks a lot!

@TheMarkList Год назад

You're welcome! Happty to help!

@rockingrolling3503 2 года назад

Just what I needed, thank you 😎

@TheMarkList 2 года назад

Any time! let me know if you need help with anything else and i'll do a video on it!

@rockingrolling3503 2 года назад

@@TheMarkList awesome and thanks again 😎

@DaylightRob210 2 года назад

Excellent. Thanks !

@TheMarkList 2 года назад

Any time! Will be posting more soon...enjoy the rest of your weekend!

@JoshCheron Год назад

Easy enough. Thanks!

@TheMarkList 10 месяцев назад

Glad it helped!

@MTBMOR Год назад

I have a little baggy full of these as well as complete valves just in case. The more you ride the more stuff you learn to use and collect.

@legiman1918 Год назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zGEMiUG7nIU.html

@carltoneasy9984 2 года назад

Thank you 🙏🏽

@TheMarkList Год назад

You're welcome!

@powsno4485 Год назад

Thanks!!

@TheMarkList Год назад

Any time!

@andykrask3184 8 месяцев назад

simple clear

@TheMarkList 8 месяцев назад

Glad it helped!

@mrblueskynm3968 Год назад

Thanks! I recently got my first bike with a presta valve and I just noticed my valve was bent and I wasn't sure if I needed to take the whole valve off to fix it.

@TheMarkList Год назад

any time. let me know if you need help with anything else.

@mrblueskynm3968 Год назад

@@TheMarkList Cool, I appreciate the offer. I just set up my new repair stand and replaced the presta valve. I also got to try my CO2 inflater to see how well it works. Everything is working out great, just waiting for my chain lube so I can wash and lube the bike. Cheers!

@Sara-sh4jw Год назад

Hi, thanks for the video, made things look more easy. One question, is there different size valve cores or are they all standard size for a push bike?

@TheMarkList Год назад

Most are the same size.. There may be some proprietary sizes for different tubeless valves but for the most part, the same. I'm going to look into this for you.

@years1132 4 месяца назад

Hi thanks for the video, I just wanna ask if the thing is clogged and air won’t come out, do I just remove that core anyway? Thanks ❤

@TheMarkList 4 месяца назад

yes I would remove it and see what’s clogged. There may just be dried sealant at the bottom of it that needs to be removed by hand.

@paulahavens2764 2 года назад

thanks this really helped. My Presta valve broke but the tire did not go down, It stayed sealed and I drove 50km and the tire stayed up all the way. Now I know how to change the core I can take a core from my spare and just replace the core and keep on going. Great video. Sometimes it is hard to get the pump on a tire is there an extender that you can put on a tire so you are away from the rim and then put the pump on?

@TheMarkList 2 года назад

I do believe they make an extension you can screw on an existing valve stem.. ideally, get a longer stem next time which helps with deep rim profiles.

@davidbryanwoodworksandmore Год назад

Hey cool video. I’ve got a presta valve core that is removed but the air won’t come out of tire. I can’t put air into tire with core installed either. Is there something that is in the tire to keep air from coming out when removed? And when I put core in the air won’t go into tire. Which is why I removed the core in first place. I’ve never had this happen before.

@TheMarkList Год назад

Take a 2mm Allen wrench and shove it into the valve once the core is removed. Most likely it's clogged with dried sealant. I'll post a short today on how to do it.

@davidbryanwoodworksandmore Год назад

@@TheMarkList actually that’s what I did. It was dried up inside. Thank you though for responding.

@rangersmith4652 2 года назад

Reason tells me a bent presta valve stem can probably be coaxed into being straight again, perhaps not perfect but certainly usable. If you have a balky or leaky non-removable core -- and many cores are non-removable -- it might make sense to try straightening it before tossing the whole tube. Care must be taken, of course, because it's made of brass, a very soft metal that work hardens and becomes brittle. It if breaks off, you're replacing it for sure.

@TheMarkList Год назад

Absolutely! Really depends on the situation. They do break a lot when trying to bend them back!

@SirCamsmorethanalot 2 года назад

Can you use pliers carefully if you don't have those tools?

@TheMarkList 2 года назад

absolutely.. I used to use needlenose pliers until a bike mechanic gave me a hard time about it.. but yes, you can absolutely used needlenose pliers or some other type that has a ridges on the inside to provide grip etc. Just be careful to grab below the little knob that you actually unscrew.

@l0g1c60 2 года назад

Do you need All the tools or just one? Also the thing where you press to get the air out broke so whenever I press it the whole thing comes down, any help is appreciated

@TheMarkList 2 года назад

any of the tools will work. You can also use some needle nose pliers. You may want to remove it with pliers and then put a new valve core in to fix the broken one.

@l0g1c60 2 года назад

@@TheMarkList is it ok if I can private message you, so I can provide more details and send some pics of my situation

@TheMarkList 2 года назад

@@l0g1c60 sure, my email is marksicola@gmail.com

@ViorelSnap Год назад

Can I replace the valve core without deflating the tire fully? I don't have a very high pressure pump at home, I want to be able to inflate it back after I replace the core.

@TheMarkList Год назад

Once you take the valve out, it's going to deflate fully

@fahrudinsijercic8437 2 месяца назад

I can’t put valve core in my bike. I separated one more part of valve b/c core doesn’t fit. Core can be put inside on last wider part but I am using tool I can’t even turn b/w tire those tire lines. Due to my lack of English I note 4 standar cores / they look like yours and this tool with 4 features. Last year my daughter fix in private garage and I don’t know why she got different valve?? One tire is still good never fixed due to using women Shimano bike. Do I need maybe different core valves to by. Thanks in advance 😊

@fahrudinsijercic8437 2 месяца назад

And I really understand your video. / English. Even though it’s been a while you recorded it’s still helpful 🇧🇦🇨🇦👌

@TheMarkList Месяц назад

I’d take it to your local bike shop and see what they say. Without being able to see it, I can’t give you a good answer!

@joanie4c 2 года назад

This was good, but my problem is that the lower, internal part of my valve core did not come out when I removed my valve core. I need a way to get it out. Tweezers don’t seem to be working.

@TheMarkList 2 года назад

Do you have a photo of what came out of the valve when you removed the stem?

@joanie4c 2 года назад

@@TheMarkList I had to get the stem replaced because that piece was stuck in there.

@davidmclachlan6888 Год назад

While unscrewing my presta pump adaptor the valve core blew out at high pressure. Given the tight fit of the adaptor that you screw on what keeps it from acting as a valve core wrench and loosening the valve core each time? It freaked me out blowing out at 85psi and both the stem and my adaptor went flying in the backyard. Shouldn’t the thread go the opposite direction to avoid this?

@TheMarkList Год назад

If you're using an adapter for your pump to fit, don't screw it on so tight. Just snug. The valve core should be nice and tight so as not to accidentally unscrew.. Like I think happened with you.

@dazzer24 Год назад

Hi mark. My valve core is stuck and won’t let me deflate. If I remove the valve core whilst fully inflated am I going to get loads of sealant spewing out?

@TheMarkList Год назад

Spin the wheel so the valve is in the top (12 o clock) position. Then take the valve out. The sealant will be at the bottom (6 o clock position) and should have minimal spray or leakage. I'll do a short on it today.

@dazzer24 Год назад

I’m actually quite proud of myself. I genuinely though that might be the answer after I’d asked the question. Thank you for confirming 👍 great vid btw. Nice and simple. Which suits me 😉 Look forward to the short. I’ve only a standard track pump but hopefully I’ll be able to blast enough to get a seal again.

@ashIay 7 месяцев назад

You said before I unscrew the broken valve core I have to press down to let the air out, but mine wont let any air out when I press on it. Do you have any suggestions?

@TheMarkList 7 месяцев назад

Just unscrew it. It may fly out but it's broken anyway so if it gets lost you'll be replacing it anyways

@ashIay 7 месяцев назад

@@TheMarkList Alright, thank you very much!

@TheMarkList 7 месяцев назад

@@ashIay you're welcome! Let me know if you have any more questions!

@judeanthonycadano5082 Год назад

Are all presta valve core removable?

@TheMarkList Год назад

No, but the majority are...

@mrunknown1997 11 месяцев назад

My new presta valve won't go in, what can i do? And it dosen't get stuck in The core

@TheMarkList 11 месяцев назад

Hmm... Is it clogged with sealant? Or stripped? I'd take it to your local bike shop if you're not sure what to do next. I can't see what's actually going on with it so not sure exactly what to tell you!

@zylus6198 2 года назад

Can I still do this if the tip of my valve flew off?

@TheMarkList 2 года назад

You should still be able to remove the valve core if the little threaded piece came off (and put a new valve core in).. send me a pic at marksicola@gmail.com and i'll let you know.

@mikew3737 Год назад

So I can’t let the air out either due to it being clogged. It’s been 3 weeks and still at like 50psi. What can I do lol

@TheMarkList Год назад

Unscrew the valve.. It'll fly out but all the air will be let out too.. Then you can see what's clogged etc.

@infiniteawaken1 Год назад

My new presta valve doesn't seem to fit into the valve . Is there something stuck in the valve ?

@TheMarkList Год назад

Do you have custom/brand name valves which could be different sizes? Or, yes, it’s clogged. Take a paper clip/thin strong wire and plunge it a few times then try again. If that doesn’t work,let me know!

@infiniteawaken1 Год назад

@The Mark List it doesn't seem clogged ! The new prestas are the right length just don't quite squeeze in width ways ! They are AOBETAK presta valves from amazon

@TheMarkList Год назад

@@infiniteawaken1 send photos to mark@themarklist.com

@infiniteawaken1 Год назад

@The Mark List thanks! iv emailed you some pics .Hope you've received them.

@Harmonyandspirits 8 месяцев назад

mine got bend then it fell off and now half of it is stuck inside how do i get it out :(

@TheMarkList 8 месяцев назад

Are you using tubes or running tubeless? If tubes, just replace the tube if you can't unscrew the valve. If tubeless, get a new valve stem with a new core in it.

@Harmonyandspirits 8 месяцев назад

@@TheMarkList thank you it says tubeless ready i will buy new stem and core :)

@TheMarkList 8 месяцев назад

@@Harmonyandspirits ok, so it probably has a tube in it. Take your tire off to make sure or take your wheel with you to your local bike shop and have them check.

@Harmonyandspirits 8 месяцев назад

@@TheMarkList thanks i think i will do the local bike shop :)

@davidadams421 Год назад

Spent about an hour trying to replace a presta valve on my bike, used all you tips and just failed every time. Put my glasses on then realised the valve wasn't a replaceable type! I was trying to shear steel with aluminium tools!

@TheMarkList Год назад

Amazing what being able to see will do! I do the same with my glasses all the time. Glad you figured out it was not removable. Definitely frustrating up to that point!

@blackfireacid315 Год назад

Ive just realised i broke mine, i threw out a tire before cause i didnt realise this was the problem how do you avoid breaking them, i was just trying to fill my tire and then i heard a click and all the air went out

@TheMarkList 10 месяцев назад

you just have to be careful! It also depends if you're running tubes or are tubeless. Let me know if you have any other questions or issues.

@brandonstrong6846 2 года назад

Thanks Marky Mark... now lets see you rip the KTM haha. Cheers.

@TheMarkList 2 года назад

Thanks brother! I'll be putting up tons of basic starter questions and skills for multiple sports, equipment and game changers that I've discovered over the years. Thanks for the kind words!

@santos886 5 дней назад

What if it has no air ?

@TheMarkList 5 дней назад

@@santos886 not sure what you are asking?

@santos886 5 дней назад

@@TheMarkList got figured out thanks 😅

@TheMarkList 5 дней назад

@@santos886 good to hear!

@meszaros_gyula 2 года назад

Everything You Always Wanted to Know About Presta Valve (But Were Afraid to Ask)...

@TheMarkList 2 года назад

Exactly! Hopefully I was able to help! Next video coming up will be Everything you wanted to know about Torque Wrenches :)

@maranatha3333 Год назад

What causes the valves to bend? Happens a lot with the tubes I'm using. Looks like they stick out too far when the nut is backed off for inflation.

@TheMarkList Год назад

absolutely.. usually happens when you're taking off the pump in my opinion or you leave open and it hits something. Good question though!

@maranatha3333 Год назад

@@TheMarkList How far should I back out the little nut for inflation?

@TheMarkList Год назад

@@maranatha3333 i always back it out all the way and I'm careful when popping off my bike pump when done

@BRM1966 4 месяца назад

Why replace it, tubes are cheap? My tube has a very slow leak, takes almost 24 hours to be flat, after 16 hours tube isn't too flat to ride on. Tube is fairly new too. I kept patching a tube over and over until on one ride the valve stem blew out and stranded me along the road.

@TheMarkList 4 месяца назад

If you're running a tubeless setup you'll need to replace it.

@BlazingShackles Год назад

the dude at bike bling gave me Stans No Tubes thingy. I couldnt get it to work at all. it wouldnt go down over the valve stem. POS and waste of $10.

@TheMarkList Год назад

Sorry to hear this!

@goldenoatie Год назад

Not worth the hassle. Change the tube to Schrader. End of problems.

@TheMarkList Год назад

So most mountain bike tires run a tubeless setup as do most of the newer road bikes/gravel bike wheels and tires. A new valve core is about a dollar and takes 30 seconds to change. A tube is more expensive, heavier and takes longer to install and change. Also, you're more likely to get a pinch flat with a tube then with a tubeless set up. A new tube certainly is an option, but with most modern bikes going to a tubeless setup, it's bit antiquated to replace it with a new tube.

@neychev Год назад

Just shows how stupid are French valves in comparison to standard ones

@davidmccullough9453 2 месяца назад

What the HELL is wrong with the old style???!!! These new things are completely idiotic! I don't have a tool to tighten the existing one that comes loose when I put the adapter for filling on! I don't understand how this is a better system! STUPID!

@TheMarkList 2 месяца назад

Yeah, they can be frustrating. For tubeless systems they're smaller and require a smaller hole in the rim etc. Hopefully you get it all tightened up!