Pick the core first, then the length
A tubeless valve stem has two jobs: seal the hole in your rim, and give your pump something to grab. Wolf Tooth makes its tubeless stems two ways. The Wolf Tooth Tubeless Presta Valve Stem Kit uses standard Presta cores and works with any Presta pump head. The Wolf Tooth Tubeless Valve Stem Kit for Schwalbe Clik Valve uses Schwalbe's Clik cores, which click onto a Clik pump head instead of threading or clamping.
Both fit tubeless rims drilled for Presta valves. Choose the core you want to live with, then choose a stem long enough for your rims.
Presta or Clik?
Presta works with any Presta pump head you already own. Clik is Schwalbe's newer core. Wolf Tooth says Clik brings better durability, more air flow and an easy click connection between pump and valve. Schwalbe says air flow with tubeless is 50 percent higher than with a conventional Presta valve, which helps when you are trying to seat a tire.
The tradeoff is the pump. Wolf Tooth says its Clik stems work with Schwalbe Clik pump heads only for everyday use. In a pinch, Schwalbe says a normal Presta pump with a clamp-on or push-on head can inflate a Clik valve, but a screw-on head will not, and you cannot read your tire pressure that way.
Wolf Tooth makes its Tubeless Presta Valve Stem Kit in 44, 60 and 80mm lengths, weighing 9g, 12g and 15g per stem.
Wolf Tooth makes its valve stem kit for Schwalbe Clik in 44 and 60mm lengths. There is no 80mm Clik version.
Both Wolf Tooth kits include three rubber bases, two cone shapes and one channel shape, so the stem seals on more rim shapes.
This Wolf Tooth stem has a Schwalbe Clik core instead of a Presta core. A Clik pump head clicks onto it with no threading. Wolf Tooth's Clik stem cap also works as the tool for removing the Clik core.
What length tubeless valve stem do I need?
Wolf Tooth does not publish a rim depth chart, so here is the plain check. The stem has to pass all the way through your rim and still leave enough valve sticking out for your pump head to grab, with room for the nut. A shallow alloy rim gets by with a short stem. A deep carbon rim needs a longer one. Measure your rim's depth, or look it up in the rim specs, and compare it to the stem lengths above.
Wolf Tooth's image shows its 80, 60 and 44mm valve stems next to each other. The length is measured along the stem. Pick the one that clears your rim depth with valve left over for the pump.
Slotted baseThe base of Wolf Tooth's tubeless stems is slotted, so air still flows if you run a tire insert that sits against the valve.
Single wall rimsWolf Tooth threads its stems below the rubber seal for a better hold on single wall rims.
Spare coresThe Wolf Tooth Presta kit includes two extra valve cores and a machined aluminum core remover, so a sealant-clogged core is a quick swap.
7075 aluminumWolf Tooth machines both stem kits from 7075 aluminum, with an oversized nut that is easier to seal and remove.
Already running Presta stems and curious about Clik? Wolf Tooth sells Schwalbe Clik Valve cores on their own, made to replace Presta cores in most Presta stems. Schwalbe's requirement is that your Presta stem has a removable core. Schwalbe also says Clik cores are not compatible with TPU or plastic valve stems.
We carry the Wolf Tooth Tubeless Valve Stem Kit, 60mm and the Wolf Tooth CLIK Tubeless Valve Kit, 60mm. For the bigger picture on going tubeless, read our post on road tubeless.
Common questions
What is a Clik valve?
Clik is Schwalbe's alternative to the Presta valve core. A Clik pump head clicks onto the valve instead of threading or clamping, and Schwalbe says it gives 50 percent more air flow with tubeless.
Can I use a Presta pump on a Clik valve?
Only in a pinch. Schwalbe says a Presta pump with a clamp-on or push-on head can inflate a Clik valve, but screw-on heads do not work and you cannot read the pressure. Wolf Tooth recommends a Clik pump head for everyday use.
What lengths do Wolf Tooth tubeless valve stems come in?
The Wolf Tooth Presta kit comes in 44, 60 and 80mm. The Wolf Tooth Clik kit comes in 44 and 60mm.
How long should a tubeless valve stem be?
Long enough to pass through your rim and leave enough valve showing for your pump head to grab. Deeper rims need longer stems, so check your rim depth before you order.
Do Wolf Tooth valve stems work with tire inserts?
Yes. Wolf Tooth slots the stem base so air can still pass when a tire insert sits against the valve.
Will Wolf Tooth valve stems fit my rim?
They fit tubeless rims drilled for Presta valves. Each kit includes three rubber bases to seal on different rim shapes.
Before you order valve stems
Decide on Presta or Clik based on the pump you use, then check your rim depth against the stem lengths. Wolf Tooth's tubeless valve stem page lists every length and color.
Questions about your rims? Ask us. If you want the Lab to set up your tubeless wheels, that is billed bench work.
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