I use this for road tubeless. This makes it sooo much easier to put sealant into your wheels. Whether it is the first shot, or a refil it makes it so much easier to just push the sealant through the valve stem instead of trying to fill the tire, then mount. I do flush it out with water after each use so that nothing builds up in the cylinder or tube.
I purchased this sealant injector to simplify the installation of Stans Sealant into my wife's gravel bike tires. This worked perfectly fine for me and I had zero issues with any mess or sealant leaking between the hose and the valve stem. I would highly recommend this injector for anyone using tubeless tires and sealant.
Adding sealant is a messy process for me, and I'm never quite sure exactly how much sealant is getting in the tire. Yes, I'm a rookie mechanic with tubeless tires. The sealant injector helped me measure the sealant. The adapter to screw-on the tube to the value stem is helpful. I haven't mastered venting air from the tire as it is displaced from the tire. Rotating the wheel Slightly helps, but I'm open to suggestions on how to vent the air without making a mess. The injector does not have a vent that I can figure out.
Simply remove the core from the valve stem, fill the injector with sealant and add the sealant to the tire. The kink in the tube keeps the sealant from running out of the tube until you are ready to add it to the tire. Really works well.
Having never had tubeless tires before I was hesitant to go that route but it is the direction road tires are going. The Stans NoTubes injector makes it simple and clean to get the tire sealant into the tire.
No fuss no mess.
Out of the box the fitting does not work on Presta stems. I used a small piece of vinyl tubing as a sleeve over the presta stem to space it to fit the nozzle on this syringe. You must remove presta valve core otherwise pressure of syringe closes valve and makes it difficult if not impossible to fill tire with sealant. With a sleeve as spacer on stem it works well. The nozzle should have a threaded adapter included to fit Presta stems, otherwise a great tool.
This does not fit on presta valve stems. If dual-threaded means that it can thread onto a presta valve, it is not dual threaded. I even tried turning a valve extender upside down and it would not thread into the injector. I don't see any way to use this with a presta valve or valve stem.
Riding tubeless for a couple of years now. Got the tire mounting down, but really no way to avoid slop and wasted sealer, until now. 20 mins to to pull tire, clean rim, replace stem, replace tire, and fill without a drop on the floor. Already bought a second to give as a gift.
Maybe the best $10 I've ever spent on bike gear. I've tried every other method for adding sealant to my tubeless tires and nothing is as easy and clean. The brass adapter makes a tight seal on the valve so all the sealant goes into the tire not on the floor. Shake the bottle of sealant and squirt it directly into the injector and you don't have to worry anymore about the sealing crystals settling out and being left behind when you add sealant. Are there cheaper ways to do the job? Yes, but do yourself a favor, don't get cheap at the wrong time.
Exact experience from this previous review
One star because it works or it doesn't.
The new injector, with the new cheap plastic fitting does not work. I bought a replacement injector after having used my old injector for the past several years. The old injector had a brass fitting and worked great. The new injector has this piece of junk plastic adaptor. I could not get it to screw on to my presta valve at all. I ended using my new injector as spare parts for my old one. Stans needs to get rid of the substandard plastic injector and go back to the brass fitting.
One star because it works or it doesn't. In my case, the new injector, with the new cheap plastic fitting does not work. I bought a replacement injector after having used my old injector for the past several years. My old injector had a brass fitting and worked great. The new injector has this piece of junk plastic adaptor. I could not get it to screw on to my presta valve at all. I ended using my new injector as spare parts for my old one. Stans needs to get rid of the substandard plastic injector and go back to the brass fitting.
I use my Stans sealant injector for both Stans No Tubes sealant (for our mountain bikes) and Finish Line sealant (for my gravel bike). It works great for getting a measured quantity of sealant into my tires. Its easy to clean, store and re-use.