Muc Off 1051 Black Tubeless Presta Valves, 44mm - Premium No Leak Bicycle Valves with Integrated Valve Core Removal Tool

I love that you can choose your own seal and they come with a core remover cap. No issues going tubeless on my cheap giant wheels.

looks great and lets see how they work

Looks great. Works great.

Good value here imo. Purple matches my wifes bike so shes happy. No issues, just as good as the stans brand.

I purchased these valve stems because of its reputation and brand name. I converted my Axis gravel bike tires to tubeless and have run into so many problems with these stems. The front wheel worked fine, the stem held up and didn’t cause any problems. The rear wheel was a pain I had to retape and try to install a the wheel three times. Each time it developed a small leak around the valve stem. I kept thinking it was a poor installation on my part, so I finally reached out to my LBS and had them install it for me. They told me that the valve was leaking and that they would need to replace it. They installed the Stan Valves. I wish I went ahead and bought the stans instead of picking Muc Off

Im a man wholl gladly pay a premium for a product, as long as it solves my problem. My problem in this case was my very first successful tubeless tire installation. The wheels on my new Specialized Roubaix came tubeless ready and with valves that of course didnt work. They just wouldnt hold air around the seal. So I stumbled upon these, and since I would have them in my hands inside of 3 days, I bought them, despite how pricey they are. Now, once you see the package, you notice that these valves come with the tool for removing the valve core, which is a plus for me because I love new tools. They also came with 3 different types of valve seals for the hole where the valve pokes out of. All you have to do to swap them is remove the one that came installed from the factory by first removing the cap, lock ring, and the o-ring, which frees up the seal to be removed. Since my DT Swiss wheels wouldnt work with a cone shaped seal, I used the one thatll resemble Thors hammer when installed. You push that through the hole, make a good tight seal, and despite recommendations to the contrary in a video I watched, place the rubber o-ring over the valve, followed by the lock ring, which has room for the o-ring to make a nice tight seal. Finger tight only! Now, just complete the tubeless tire mounting as one would, seat the beads of the tires, and then add your sealant through the valve. I was expecting to have to do this whole process again, but lo and behold, the tires have held their seal. This is what I call PROBLEM SOLVED! No more leaks through the valves and I managed to actually seat the tires with just a floor pump. Ill update if I get any leaks or anything goes wrong, but I dont imagine anything going wrong. Expensive, YES, but totally worth it to let me get out there on my new tubeless tires!

They give you the adapters and settle in pretty quick. No issues for me.

Easy to install even for a first timer. Tight seal. Would get again

These valves are super durable and very easy to install. Muc Off is quickly becoming one of my favorite brands in that all of their products seem to be very quality and hit that quality aesthetic feel that seems hard to find in the flood of cheap mountain bike products in the market. Highly recommend!

I tried fitting up my 27.5 MTB wheels using Stand tape and valves since theyre kinda the OG of the tubeless market. I could not get the stupid things to seal at all! Either tire just leaked and leaked from the valve stem - I went through 2 packs and not a single one would seal even with sealant! It would seal after a bit, but the second I touched it to even just check my air pressure, it sprung a leak again. I was just about ready to just give up on tubeless, but I figured what the heck, Ill try stripping the wheel down and rebuilding it with Muc Off rim tape and seals and OH MY HECKING GOODNESS!!!! The rim tape was much better than stans as well, but these valves are head and shoulders above the Stans valves! How these are better than Stans: - With these valves, you get all aluminum construction including a color matching cap as well as a back plate of aluminum that goes behind the inner seal. This allows the clamping force of the nut to simply squish on the seal rather than trying to pull the valve out of the seal (glaring at you Stans). - Another things these have is 3 different seal shapes that you can chose from to match your specific rim shape (Stans only has a small round seal thats not interchangeable or replaceable). I went with the rectangle(ish) one for my MTB rim. - These valves also have a small O-ring that goes in between the nut and the rim, which provides yet another sealing surface. Stans did not have this and this is where I would ALWAYS get leaks with Stans. I mounted both of my tires up (front and rear) with Muc Off rim tape and these valves and tried to inflate them. On my front, I didnt even need my air bomb to seat the tire! I needed it on the rear (or probably could have gotten it with another layer of rim tape, but whatever - no biggie). To my surprise, once seated, BOTH wheels hold air for several minutes with no significant drop in tire pressure even without sealant! Obviously, there are some little pinholes in there that will be sealed up properly once I put in my sealant, but the Stans setup was a fight just to inflate enough to set the bead! Needless to say, Stans is junk in my experience/opinion and I will be sticking with Muc Off from now on!