BWSHLF Tubeless Presta Valve Stem 40/44/55/60/65/80/100 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.

These stems are beautiful!!! Haven't had any issues with them yet. Installation was super easy for my new tubeless setup, and the color matches the bike super well. They feel pretty solid and like they'll last, the valve cores are easy to remove. The two types of stem covers are nice, and I like that they can be used to remove the valve core. No issues with compatibility with the alexrims 19mm rims on the bike.

These valve stems are not only classy-looking, they are solid in terms of product manufacturing, and they are also smartly engineered! When seating them to your rim, the stem has a hex-wrench-compatible base, so you can install and use a hex wrench to fully secure the stem to your wheel. And at both ends- inner and outer, they've put a nice quality rubber gasket to ensure an airtight, leak-proof seal to the rim. I mistakenly ordered 55s, which turned out to be way too long. So while I am returning this order that I purchased for converting my road bike to tubeless, I'm reordering the Red ones for my road bike- very eye-catching look. I am also ordering a second pair in black for my gravel bike conversion next week. You'll be 100% satisfied when you purchase these. P.S. - I was going to have my LBS do the conversion for me; however, after some consideration and being reasonably mechanically inclined, I've decided to do it myself. My LBS in the quote to do the switch listed the 'nothing fancy', plain old valve stems at $25.00 apiece.

I got the 55mm version for my 35mm deep wheels and it's a perfect fit. It looks clean and there's still plenty of room for my pump head to fit. These were easy to install and I got an air-tight seal without any issues. Just push down hard on the head inside the rim while screwing in the nut and there won't be any leakage at the valve. The caps look good and it's smart how they also function as a valve core remover. I gave one of them a try and it doesn't feel as good as using a proper tool, but it will definitely work in a pinch out on the road. These are well made and I'm happy with the purchase. If I buy a deeper set of wheels and need new valve stems, I'll come back and buy a longer set of these.

Work well and sturdy

I used these in my Carbon hookless wheels which I run tubeless. I needed to replace one of my valves and took the opportunity to put on new tires, replace the rim tape and install these new 60mm presta valves. They have a nice design with nice size holes at the base which is inside the tire that helps prevent sealant getting jammed in and, if you are using a tire insert, it would work to let air with the insert blocking the airway. Installation was easy and the with only hand tightening, it sealed very well as the gasket gets compressed inside retainer nut. The two sets of stem caps, both with integrated tool to open the valve, is appreciated. Great value.

I've built three sets of tubeless wheels (two mountain bike and one road set) using these valve stems. They are easy to install and work great. You can spend more, but why would you when these work so well!

Great stems! Best Ive ever used!

muy buenas y no se tapan

Tiene buena calidad para el costo, totalmente funcional

The valve comes with two caps each. One cap is the regular cap and the other has the inbuilt valve core removing tool which works very well indeed. The only draw back to the valve is how much it sticks up on the inside of the rim. I couldn't slide the bead over it so I had to remove the tyre for the replacement process. It's installed now but I had to use the bike shop electric pump to reseat the tyre which wouldn't have been necessary if I could have just slid the bead over it.

Good quality valve quite short but does the job well

These allow a lot of air thru (similar to the cushcore) which makes it easy to seat the bead of mtb tyres using a floor pump (as long as it's a high volume low pressure floor pump designed for mtb's). These valves are a bargain so got a couple of them.