Stan's NoTubes Tubeless Valve Stem - Pair $16.00
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.
What community has to say
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.
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.