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Presta valve cores.

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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Presta valve cores.

Old 02-21-18, 11:17 PM
  #1  
deepakvrao
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Presta valve cores.

Need some, as my sealant tends to get them gummy.

These look really inexpensive. Any experience with cheapo cores? Any suggestions?

https://www.amazon.com/Valve-Removab...70_&dpSrc=srch

These are Vittoria, and also really cheap, but seems they dont ship.

https://www.bike24.com/1.php?content...u=1000,185,188
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Old 02-22-18, 01:07 AM
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I googled "Vittoria valve cores" and got lots of options, including Amazon. I would copy and paste a few but I'm not sure what sellers would suit you if you are in India.
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Old 02-22-18, 02:21 AM
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I use Tufo cores.
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Old 02-22-18, 03:13 AM
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CliffordK
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How fast do you burn through them?

https://www.alibaba.com/product-deta...727415363.html
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Old 02-22-18, 03:42 AM
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Originally Posted by CliffordK View Post

Thanks. NOt much, but after about a year and a half all the cores in our bikes seem sticky. Just went tubeless in June 2016, so almost 2 years now. Since we have about 8 wheelsets on tubeless, I need a whole bunch of cores. Living in India, I prefer getting them when I travel.

Originally Posted by Fox Farm View Post
I use Tufo cores.
Thanks.

Originally Posted by theopowers View Post
I googled "Vittoria valve cores" and got lots of options, including Amazon. I would copy and paste a few but I'm not sure what sellers would suit you if you are in India.
Thanks - found it on Amazon. Will get that I think.
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Old 02-22-18, 04:09 AM
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Originally Posted by deepakvrao View Post
Need some, as my sealant tends to get them gummy.
Not really what you're asking but I have no problem cleaning the lower o-ring by rubbing it for a few seconds with my fingers.
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Old 02-22-18, 09:26 AM
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Originally Posted by ReneV View Post
Not really what you're asking but I have no problem cleaning the lower o-ring by rubbing it for a few seconds with my fingers.
Yeah, I've cleaned them myself, too. I don't know about other sealants, but Orange Seal is pretty easy to peel when dry, so even if it's in the valve tube, enough will come out to allow the pin to move freely.
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Old 02-22-18, 12:15 PM
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Yea I've used the Vit ones and they work well, come with a tool also, I assume you bought these https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 02-22-18, 12:33 PM
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I source a couple of 10 packs every now and then and keep them on hand at races for just this reason. There's a group out there that has a killer new sealant injection system that includes a new valve design that should help cores keep from fouling. i am looking forward to testing it as trying to set pressures in the 20-24psi range for cross when it's cold and raining and sealant has plugged it is immensely annoying.
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Old 02-22-18, 12:34 PM
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Oh and FWIW - you can clear the extension if needed with a safety pin at a race. they fit perfectly and can get to the bottom of a 50mm extender.
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Old 02-22-18, 08:41 PM
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Originally Posted by ReneV View Post
Not really what you're asking but I have no problem cleaning the lower o-ring by rubbing it for a few seconds with my fingers.
Not that easy with Stans Race stuff. Been doing that till now.

Originally Posted by WhyFi View Post
Yeah, I've cleaned them myself, too. I don't know about other sealants, but Orange Seal is pretty easy to peel when dry, so even if it's in the valve tube, enough will come out to allow the pin to move freely.
Originally Posted by redlude97 View Post
Yea I've used the Vit ones and they work well, come with a tool also, I assume you bought these https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Yes, these.
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