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Stan's No Tubes is all about eliminating the tubes in your tires, but you'll still need valve stems. That's why they make these Tubeless 44mm Valve Stems. They go in place of the valves that are integral with a tube, however they have a rubber cone built into the end opposite the valve to seat into the valve stem holes in your rims. Their universal shape allows them to effectively seal UST and Road Tubeless, as well as standard tube-type rims. Stan's No Tubes Tubeless 44mm Valve Stems have a removable valve core to facilitate easy sealant injection. This way you won't have to break the bead on your tires if you need to freshen up your sealant. They come in a package of two.

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Stan's NoTubes Tubeless Valve Stem - Pair

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Here's what others have to say...

5 5

straightforward valves

  • Familiarity: I've put it through the wringer

Great valves with a removable core. These are the longer ones. They're about as long as road bike valves. They'll work on all presta rims, but some people may want shorter valves that don't stick out as far. It doesn't bother me at all.

4 5

Awesome Valve Stem

  • Familiarity: I've put it through the wringer

great valve stem and does not leak air at all, the only thing is I would use a pair of needle nose pliars to tighten the nut around the stem, not just hand tighten.

5 5

Part of the Tubeless Setup

  • Familiarity: I've put it through the wringer

If you are going tubeless you'll want to pick up the full assortment of Stan's pieces and then log onto their site and follow the easy instructions. These work great on any rim I've ever tried and if you have an injector, the removable cores make adding more sealant a breeze.

5 5

Perfect Match

  • Familiarity: I've put it through the wringer

These were an easy add-on for the Stan's wheels. They seal tight enough by hand and have had no leaking.

5 5

Half the battle to Tubeless victory

  • Familiarity: I've used it several times

These valve cores work really well setting up pretty much any rim tubeless. The shallow, tapered rubber valve seats well to nearly any and all rims channels to provide a leak free interface. I find them to work especially well for narrow rims or just setting up tubeless with Gorilla tape. They do have removable cores to make injecting sealant through a breeze.

5 5

Tubeless must have

Using on tubeless mtb wheels and working great. Kind of pricey for what they are, but you have to have them and they're well made so they should last. The only part likely to fail, the valve core, is replaceable. If I notice the valve seems sticky, remove it and peel off a bit of dried sealant and its good to go. I still keep extra cores just in case. If you don't know already, these are presta valves and won't fit in rims drilled for schrader valves. They also seal themselves using air pressure, so they don't have a spring in them.