KOM Cycling Tubeless Sealant Injector Syringe and Presta Valve Core Removal Tool by Designed for Stans No Tubes sealant and Other sealants …

Works really great had this for a while, used it on my road bikes and my gravel bike as well a couple of times. Good quality and cost wise easy on the pockets worth it, for those who wanna save money from the bike shop this makes it easy to add more sealant into your tires..

After getting some 18 punctures in two tires by riding over one puncture vine, I decided to put some old fashion green slime in my fat bike inner tubes. Unfortunately, the inner tubes have the smaller presta valves and not the larger Schraeder valves. Green slime has tubing for schraeder valves, but not for presta. I decided to buy this injector kit and I was able to do the job without difficulty. The kit contains a small plastic wrench to remove either presta or schraeder cores. The wrench includes an extra hole to attach it to a lightweight key ring. I had no trouble using the wrench, but my spokes are widely spaced on the fat bike. The wrench acts a like a handle that may hit spokes for wheels where the spokes are more dense. As shown in the picture, hoses come with the syringe. The hoses were easy to attached to the syringe. Sucking up the slime was fairly slow - maybe 2 -3 minutes to get 1/2 full syringe. The discharge of the syringe went fine. I was careful to wipe the outside of the tube with a paper towel before inserting it into the valve stem (core removed). The tube went well past the valve stem, and no slime gunked up the stem. Everything cleaned up quickly with a few water rinses. Totally reusable. Though it looks like a simple disposable syringe, the plunger seems well made as there was no leak by when pulling vacuum to suck up material into the syringe. Everything was nicely package in a box that also facilitates saving the syringe and hoses for reuse.

I've used this a few times to do tubeless conversion on a new bike, and to replenish Stans on older bikes. It works as described and I didn't have issue using it with Stans. I agree with others the price seems higher than what you would expect for a syringe with a tube, but nice to have it all in one package. I don't ever use the valve at the end of the syringe as the syringe does a good enough job of keeping the Stans from dripping out when I'm moving between the bottle and the valve stem. The tube fits in the valve stems without issue.

This is an excellent solution to a messy problem. No matter how careful I tried to be in adding tubeless sealant I seemed to make a mess. Using this syringe solution was easy and clean. Wish I would have bought it when I went tubeless years ago. Highly recommend.

As part of the legion of road cyclists wanting to venture the path of the tubeless road tire, I have to share my experience with this syringe setup. Looks simple enough, and it is. You have an attachment that has a shutoff valve so you don't spill sealant before injecting into the tire, an extra hose that I assume is for sucking out sealant through the valve with the core removed, and another hose that threads onto the end of the syringe and that firmly attaches to the tubeless valve itself. It also has a plastic tube that is also used for removing the valve core. I attached all the hoses, added my sealant, attached the hose to the valve on the tire. Open the valve and inject your sealant of choice into the tire. I got no mess, and no problems with the sealant I bought for this purpose. This thing just works, that's all I'm gonna say. It has everything you need and nothing you don't for this job, which was done by an absolute beginner in this case. I'm happy, which is all that matters today! Take my money anytime!

Worked perfectly…used on my road bike to inject sealant…

I've owned this for a number of years now and it mostly works well but with a few issues. One thing I wanted to alert folks to is that my most recent Muc-Off sealant is frequently clogging the valve portion of the product. Muc Off includes chopped rubber fibers and while usually they are small, at least in this latest batch, they are sometimes large enough to clog that valve which is a real pain. The valve isn't absolutely required but does help in the handling and preventing spillage

Does a great job with tubeless sealing and maintenance, just what u need!