🔧 Thinvik Tubeless Sealant Injector for Stans No Tubes: 3.5 oz/100ML Syringe with Presta Schrader Valve Core Removal Tool & Other Sealants Review

I learned the hard way that my valve stems for tubeless tires don't have a removable core. With this product, I was able to easily puncture the tire and inject the sealant. It worked great.

I'm relatively new to tubeless use and was hesitant to add a tube after the initial setup. These little tools make the job a lot easier. There is no need to break the pipe to bypass the seal (which took me some effort to create).

Works great so far. I've used it with Stan's No Tubes sealant and WTB tubeless valve stems. I haven't had any issues with clogs, over pressure, drips, leaks or anything else that bothered me. When I'm done pouring sealant into my tires, I run hot water through the injector several times to clean it, then leave it disassembled to dry. I've used it 4 times and it worked perfectly.

The openings of this device are too small for efficient use. If you use sealant with particles in the sealant (e.g. Panaracer sealant) then when you glue this block all the goo will go into the tire but the particles intended to fill large holes will stay in the piston. Do not buy this block. Had identical problems with Panaracer sealer and Finishline sealer. This will turn your high quality sealant into junk.

I loved this item so much I'm buying a second one to replace. I filled 90ml (3oz) at a time into my Continental Road 700x25-32 tubes. Contains two nozzles. I used a thread adapter. The trick is to inject the sealant very slowly, otherwise the sealant will start leaking out of the tube. Make sure the hose/tire is well below the injector to allow gravity to flow down. If you don't want a mess, be patient and wait 1-2 minutes or you will have a mess. It's easy to clean, just fill a glass with…

What a mess! Get another one with a valve. Once you fill this thing, the liquid just pours out of the hose and drips all over the place. You'll need to use the other hose (supplied with two, which screws onto the valve) and THEN fill the syringe while it's attached to the wheel. Very uncomfortable. Also, the hole where you attach the hose is too small so it clogs easily so no liquid comes out no matter how hard you push the plunger. Trying to add sealant to my new tubeless setup was a desperate

They fit perfectly. Comes with two hoses of different diameters. One screws into the air valve and the other is just a thin unthreaded hose. I only used thin unthreaded tubing as I have a removable core valve wall. They drip a little, but I expected something like this to happen, so I put newspaper where I was rocking and it kept the floor from getting dirty. I'm deducting a star because on the second tire when I tried to prime it it failed to prime from a purely upright position. I had to tilt