Need compressor fitting for tubeless install
#1
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Need compressor fitting for tubeless install
Hi,
I mounted a WTB raddler to my front tubeless rim today, and tried using a presta adapter and a shraeder fitting hooked up to a compressor to blow up the tire. Almost no air went in. Is there a special fitting for this?
Dave
I mounted a WTB raddler to my front tubeless rim today, and tried using a presta adapter and a shraeder fitting hooked up to a compressor to blow up the tire. Almost no air went in. Is there a special fitting for this?
Dave
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Did you remove the presta valve core first? If not, you need to because it will allow a lot more air in.
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https://www.topeak.com/global/en/product/1394-TUBIHEAD
This really helps. You can unthread and reinstall valve core under pressure.
This really helps. You can unthread and reinstall valve core under pressure.
Last edited by Atlas Shrugged; 07-17-23 at 08:21 PM.
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You shouldn’t need to take the valve core out, but if you’re not getting “hardly any air” into the tire, something is wrong on the inflation side.
It could be a number of things, and is probably a combination of things. What kind of compressor is it; how much does it flow; and what is your hosing diameter? Which inflator head are you using?
If you don’t know the answer to those questions, you haven’t thought enough about the situation, and if you had, you had, you wouldn’t be in this situation.
Let us know where you’re at, and we can begin to offer some suggestions, otherwise just buy a Park INF-2, because that’s the best inflator head you can put on any compressor.
It could be a number of things, and is probably a combination of things. What kind of compressor is it; how much does it flow; and what is your hosing diameter? Which inflator head are you using?
If you don’t know the answer to those questions, you haven’t thought enough about the situation, and if you had, you had, you wouldn’t be in this situation.
Let us know where you’re at, and we can begin to offer some suggestions, otherwise just buy a Park INF-2, because that’s the best inflator head you can put on any compressor.
#6
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You shouldn’t need to take the valve core out, but if you’re not getting “hardly any air” into the tire, something is wrong on the inflation side.
It could be a number of things, and is probably a combination of things. What kind of compressor is it; how much does it flow; and what is your hosing diameter? Which inflator head are you using?
If you don’t know the answer to those questions, you haven’t thought enough about the situation, and if you had, you had, you wouldn’t be in this situation.
Let us know where you’re at, and we can begin to offer some suggestions, otherwise just buy a Park INF-2, because that’s the best inflator head you can put on any compressor.
It could be a number of things, and is probably a combination of things. What kind of compressor is it; how much does it flow; and what is your hosing diameter? Which inflator head are you using?
If you don’t know the answer to those questions, you haven’t thought enough about the situation, and if you had, you had, you wouldn’t be in this situation.
Let us know where you’re at, and we can begin to offer some suggestions, otherwise just buy a Park INF-2, because that’s the best inflator head you can put on any compressor.
Dave
Last edited by bonsai171; 07-17-23 at 09:04 PM.
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I don’t know why that would be, so I’d check the fitting of the adapter to the valve first, and make sure the valve pin is fully open and not been closed by the threading on of the adapter.
Next, I’d confirm that I was running at least 3/8ths inch hose if not 1/2”, and definitely not chintzy 5/16ths or 1/4”. That’s from the compressor to the inflator head, the obvious “pinch point” for flow rate.
If all looks good there, I’d move to eliminate the adapter by getting a presta compatible inflator head, on the (perhaps outside) chance the adapter is causing the flow restriction by it’s very design. It’s a hack for having the wrong tools in any case, so I’d seek to jettison it and get a proper inflation head that can be fitted directly to the valve. There are several brands, including Prestaflator, but if you’re in this for real and plan to handle your own tire needs, I’d recommend just paying the seemingly absurd money for a Park INF-2. I’ve used a few inflators before Park, and the INF-2 is far and away the best by any standard that matters me to me, not the least of which is ergonomics.
If none of that fixes it, you’re doning something wrong and need to review your technique.
#8
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Air gun, if you have one of those for your air compressor just use that. Pop the valve core out and just jam the air gun nozzle right in the hole. Works better than fighting with schrader valve to presta adapters, or just buy the presta inflator attachment
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If you take the valve core out, you don't need the adapter. You can press a standard air hose valve against the presta valve without the core inside. It's a bit of a juggling act to put your finger over the hole with one hand and get the valve core ready to install with the other hand, but it works much better than trying to inflate it with the valve installed. The valve just won't allow enough volume to enter the tire, quickly enough to seat the tire.
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I’ve used valve stems from American Classic, Easton, Muc-Off, Winspace, and Supacaz, but I can’t imagine valve brand makes a difference, so if anyone is experiencing trouble around this issue, it’s probably due to their inflation equipment.
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https://www.topeak.com/global/en/product/1394-TUBIHEAD
This really helps. You can unthread and reinstall valve core under pressure.
This really helps. You can unthread and reinstall valve core under pressure.
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I use Jaco Lightning L3-Series for Bike Tires I got off of Amazon with my air compressor. Works with valve removed on presta. Jaco also has one specific for Schrader I use for the car. They are easy tho unscrew and switch. Also got there digital gauge I like.
I do have a charge bottle I’ll use. Take it on trips.
I do have a charge bottle I’ll use. Take it on trips.
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#17
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Today I brought the tire to my local REI, and they seated it free of charge. Brought it home, injected 2 oz of sealant, and swirled it around. 3 hours later, most of the air leaked out. The tire is still seated, so I refilled it with air and swirled it around again. Turns out the valve nut was a little loose, hopefully that's the only issue.
Dave
Dave
Last edited by bonsai171; 07-18-23 at 07:29 PM.
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I prefer using this: https://www.topeak.com/global/en/pro...-TUBIBOOSTER-X
Never have an idea
Never have an idea
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#22
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Dave
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#23
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Take the wheel back off, put the valve at 6 o'clock, and bounce the wheel off the ground. That splashes the sealant around the base of the valve and usually fixes slight valve leaks.
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It lost more air. The valve core was leaking pretty badly, so I tightened that. There were a few bubbles on the sidewalk, hopefully the sealant will take care of that. Left the house for a few hours, and it held the pressure pretty close to the original 40 psi. Gonna check again tomorrow morning, but it looks like this one is good now. Thanks everyone!
Dave
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Noob Question re: Tubeless Valves - Bike Forums
Last edited by SoSmellyAir; 07-19-23 at 11:17 PM.
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Shraeder air chucks open to release air when the body of the Shraeder valve pushes against the nub in the middle of the valve. Some Shraeder chucks do not seem to play well with Shraeder adapters. I solved a similar problem to the one experienced by the OP when I bought a different chuck.
Brent
Brent
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