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.
The adapter does not screw onto presta valve stems. I had to remove the adapter and connect the tube directly to the stem. This method works but is messier than it could be if the adapter actually worked.
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.
This thing did NOT thread on to my presta valve. Big mess trying to use it.
For what it is, I'm happy. A little leaky but it's nice to have a dedicated sealant syringe
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.
First time using this product. So far so good.
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.
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.
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.
No problems.
Doesn't seem to screw into presta value core, have to hold in place while injecting thus a little messy.
Love that I am not buying the small disposal stan's sealant, this works exactly as it should, easy learning curve.
Straightforward and makes a potentially messy process fairly easy. If you have tubeless make your life easier and get one. Saves time and money going to a bike shop.
Stupid easy to use and makes tubeless refills a simple task. A no brainer if you have a removable valve core.
If you're going tubeless you're going to want this. It just makes life so much easier. A great solution that is simple and effective. Plus it cleans up easy.
The pump is easy to use and accurate.
The injector makes refreshing the tubeless sealant very simple. Much easier and less messy than unseating the tire for the refill.
Perfect device coupled with a large Stans sealant bottle to inject sealant into the valve core.
