20 Pieces Presta Valve Core Bike Replacement Brass Tubeless Core for Tubeless Road MTB Bike, w/Stan's, Vittoria, Continental, Kenda and Mor


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  • Package include: 20 pieces presta valve cores you will get in the bag, enough for your bicycle, you can also share them with your family and friends, they are good bicycle necessities
  • Advantage: a small, handy tool, approx. 1 inch/ 2.54 cm long, it is taken to replace the leak of the old valve and make the tire rejuvenation, stop air leaks from old valves,l compatible and good air tightness, they are more durable, safe and reliable
  • Durable and sturdy: these valve cores is made of quality copper, enhance the corrosion resistance of the valve core and valve stem, especially when installing the valve core into an brass valve stem, more durable, safe and reliable
  • Fits for: presta valve cores (French valve core) are mainly applied in bicycles, universal Presta valve cores, compatible with Stan's, Vittoria, Continental, Kenda, Bontrager, road and MTB tubeless valve stem
  • Easy to install: use pliers or valve removal tool to screw onto presta valve stem, no longer need to worry about bicycle tires, so that you can ride your bicycle with ease and pleasure when outing trip or match with your friends


Brand: Boao

Product Code:



In Stock
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Which bikes are applicable?

The brass tubeless bike cores are suitable for replacing bent or leaky ones, compatible with tubeless road MTB Bike, Stans, Vittoria, Continental, Kenda, etc.

Warm Note

- Please kindly check your bike model before the order.

- The brands mentioned above just show the compatibility of the product, do not for other use.

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Product details
  • Item Weight: 1.12 ounces
  • Shipping Weight: 1.1 ounces (View shipping rates and policies)
  • ASIN: B07VFN82YR

Presta valve works as described. Replaced 2 valves on my mtb which was clogged with old tubeless fluid. I can now pump air more freely.

I don't know what it is with my bicycle pump brakes off lease tips on presta valves. I have stem extensions that I need to install on my tubes because of my 60 mm wheel hubs. He's house work perfectly and did not leak. And I have a ton of them for when my pump when's the tips and breaks them off eventually. I was getting a new bike pump but it's expensive and I've had it for a long time you can't return it. I definitely recommend these.

The top pin is just a little too high, preventing the park tool core remover to fit properly over the core

I run tubeless tires and wheels on my 2014 Trek Domane road bike. From time to time, the valve becomes gunned up from the tire sealant and needs to be cleaned or replaced. It’s much quicker and easier to just replace the Presta valve core. I just replaced the core on my rear wheel that would leak down in a day. Pressure has now remained high for two days, so I assume the new cord works.

If you have tubeless bike tires, you need these available when the sealant gums up the valve core. Just take the old one out and put in a new one. A fraction of the cost of bike shop replacement item.

No prob

Work great to replace leaking OEM valves

Haven’t had any issues with these valves yet. Used two of them so far with no issues.