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.

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.

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!

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.

Nice quality valve stems but word of warning. The width of the rubber portion that seals against the inner rim is wider than older valve stems. I have some older tubeless rims that are 18mm wide and these valve stems don’t allow the tire to seat against the rim properly. Had to go to old valve stems. Thankfully I have other wider rims that these should work for.

Bought these based on all the positive reviews and was not disappointed. Well made and work/look great.

Price is great compared to the name brands. I needed longer valve stems and wanted the new technology that these have. They fit great, install was easy, and the color is spot on!

Works and looks great. I set them up on my new p-zero rs tires.

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!

I wanted to set up my mountain bike (MTB) with a tubeless system after realizing the benefits years ago. However, the process can feel confusing at first: tires, valves, sealant, rims, rim tape and tire inserts all come with questions. How much tape do I need? How much tire sealant should I use more importantly what type? Did I use too much, or not enough? What kind or brand of tape is best? Are my tires and rims even tubeless compatible? It can be frustrating to figure out at first. Setting up tubeless can seem oversimplified, but it's important to check the sidewall of your MTB tires for details. For example, a tire like the Vittoria Barzo XD Trail 29x2.25 Mixed/Wet Terrain Conditions will have information about tubeless compatibility and recommended pressure on the sidewall. Always refer to this information for a successful setup. When investing in tubeless valves, expect to spend between $10 and $30 plus per pair, depending on the brand and features. Quality tubeless valves are typically made from aluminum or brass for durability and corrosion resistance. Popular and reliable brands include Stan’s NoTubes, Muc-Off, Peaty’s, and Reserve. Key factors to consider: * Valve Length: Match the valve length to your rim depth (most MTB rims use 40mm or shorter valves). * Removable Core: Valves with removable cores make adding sealant easier. * Seal Quality: Look for valves with quality rubber grommets or seals to prevent air leaks. * Color/Customization: Some brands offer coloured valve stems to match your bike if aesthetics matter to you. * You don’t need the most expensive option, but avoid ultra-cheap, generic valves that may leak or corrode. A reputable mid-range option from a known cycling brand is usually the best balance of price and reliability. * DT Swiss rim tape, despite its higher price, is considered a worthwhile investment due to its quality, reliability, and long-term performance benefits. * Vittoria Air-Liner Protect Trail MTB Tire Insert – 29” x 2.1–2.6 | Lightweight Tubeless Rim Protection with Run-Flat Support for Trail Riders BWSHLF Tubeless Presta Valve so far so good. Would purchase another set for my second MTB. They just work!!! Purchases date Nov 5, 2024

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.

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.