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

So far so good

Love these stems, they seem very sturdy and seal great! Added plus, they look good on my bike. Also bought the Muc Off sealant for tubeless use, it sealed up the tire great!

Really like these valves. I especially like that they come with a variety of rubber washers for fitting the valves to different rims. Instead of cutting up old inner tubes to make washers you can just pick from the ones supplied with this product. Sturdy and no leaks. Nice!

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

Very well made stems. Metal valve caps are nice.

Just as described

These not only look great, but work FLAWLESSLY! I love how they have different rubber gaskets to fit different rims better. Super easy to set up and feel like really nice quality. Worth every penny.

The Best I have Seen or Used and they Look Great

I dont know if the quality has gone down on these or what. I bought this based on all the reviews. 2% with 1 star in 3K+ reviews. I bought the first set and it failed me the first time. Thankfully, I was pumping it dry and didnt waste any sealant. I wasted hours though trying to get my tires to seat and it turns out the valve core was not letting any air in. So, I got a replacement from Amazon thinking it was a rare occurrence. The second time around, both my tires are set. Sealant in and tubeless tires are a go. I thought that was that. ONLY for both valves to leak air out. Tried to pump air back and the valve core is just broken and we cant inflate the tires with the valve core in place. At this point, Im just going to try to replace the valve core rather than remove everything to return it. Im hoping it works, otherwise, i might just have to spend more money to have a bike shop fix it.

Work okay but to my way of thinking overpriced and could have included more variety of rubber seals.