BWSHLF Tubeless Presta Valve Stem 40/44/55/60/65/70/80/100 mm, Super Light Alloy Presta Valve Stem Kit with Valve Core Remover Tool and Valve Stem Caps - Multiple Color and Size Options(Pair)

I love these. The attention to detail is amazing.First, the quality is good all around. The threads are precise and smooth. The grommet and O-ring are good quality with no abnormalities that affect usage. Top cap machining is excellent.While the basics of presta valve stems are the same and fit a standard, there are ways to stand out from the typical presta valve.1) The O-ring is fully captured by the tightening nut. No matter how much you tighten, the 0ring will not push out or deform thanks to the deep capture channel of the nut. The last 4 photos illustrate how well the O-ring is captured.2) The interior base is keyed for an allen wrench so you can hold the valve stem in place and torque your tightening screw down easily. See photo.3) The interior grommet is flanked by a large base. Even if you torque the tightening screw down further than you should, it is hard for the gasket to go past the base. It is almost fool proof, although I still wouldn't torque this down to the maximum. You just want to remove any play in the stem when tightening.4 )Both top caps serve as core removal tools. They fit well and make easy work of even the tightest cores. See cap photos.5) The look is amazing. I use Bontrager tires & wheels so the B logo fits perfectly.These are great valve stems. The amazing grommet and O-ring design makes these a cut above the typical stems you see. Not too mention the top caps. While they still suffer from thin and weak shafts due to the presta standard, they are the same durable as any other valves regarding the shaft. Also, these valve stems will not fix a bad tape job. They may help gloss over a mediocre tape job at the valve hole, but a bad tape job will always leak. I 10 years of daily riding, I have tried it all, and these are my favorites thus far. Prestas are not perfect, but these help elevate the platform a bit.

Not much to say about this. It came in a nice metal box with spare caps. Install is very easy and they dont leak. I like that these are offered in various colors and lengths. They seem to be more substantial then Stans that I used to buy.. Perhaps for weight weenies it may not be the best option.

These tubless valve stems are good quality and work great when I “do things right”. The problem I have is that it’s sheer chance that I “do it right”,and am plagued with airleaks around the valve stem. Accordingly, I install tubes in my bicycle tires. I purchased these stems because I occasionally try again, and again; hoping that someday I’ll learn how.

It comes with built in valve stem remover which fits perfectly over the flats of the valve stem, so you can get it nice and tight...no leaks. The tapered rubber bottom seals into the rim nicely. I have only done the front so far but plan to do the rear soon. The color is nice matches other accessories. I have pretty deep rims and the length seems like overkill, but its better too long than too short. Whatever formula i used i could have probably went down by 10mm. Hopefully the O-rings last cuz they are super tiny, they probably should have packed 2 extra ones in the bag just in case. Will have to update review in a couple months after these have been put through more riding.

Decided to put my inserts back in and give them a second chance (after nearly ripping a tire off in a g-out), but needed some new valves. These work great great! The silver goes super well with the other silver components on my bike. If you know your way around tubeless, these are easy-peasy. They have a built-in 4mm allen at the base and it makes install a breeze.

Have them on both high end mountain and gravel bikes. No issues with leaks. They comes with a choice of two different valve caps with built-in valve stem removers. Have had no issues with function or sealing under very harsh trail conditions.

They get the job done and I like the color variety. Great price.

These stems were everything I hoped they would be. The quality was great and the install was clean and easy. The color was true to the ad and matched very well with the rims. Purchased the 55mm so they were long enough for my air chuck to secure itself when inflating. The valve core threaded in and out easily and the tire seated without issue. Very happy with the purchase.

Válvulas fáciles de instalar, muy buena calidad

Compre estas válvulas por que en una rodada se "capó". Esats válvulas funcionaron de manera muy eficiente. Sellan bien y estan muy boniras, el color metálico luce mucho. Dependiendo de los colores de tu bicicleta, estas valvulas pueden ayudar a que luscan mejor.Los dos tipos de tapones que traen son muy practicos para proteger el alma y para removerla.Los recomiendo bastante!

Son muy buenas vienen con un cambio extra de tapón. Además de ser baratas se siente de una calidad muuy buena !

Fin de buen material y te incluyen tapas de repuesto

Están muy bonitas y sellan bien. Pero se tapan con el mismo sellador de las llantas y luego no se pueden inflar. Se tiene que desarmar el alma para destaparla