Stan's No Tubes Tubeless Valve Stems

While specifically engineered for Stan's ZTR rims, these valves are designed to fit most tubeless-ready rims that accept a standard Presta valve. However, the rubber base shape is optimized for Stan's rim profiles, so fitment on other brands may vary.

A removable core is essential for tubeless setups because it allows you to inject sealant directly into the tire without unseating the bead. It also makes it much easier to clear out dried sealant or debris that might clog the valve over time.

The 35mm length is a standard size that works well for most mountain bike rims. If you are running deep-section aero rims or specific high-profile carbon wheels, you may need a longer valve stem to ensure you have enough clearance for your pump head.

This pack includes two valve stems, which is exactly what you need for one bike. Keep in mind that for a full tubeless conversion, you will also need tubeless-compatible rim tape and liquid tire sealant, which are sold separately.

These valves are made from lightweight aluminum and weigh just 14 grams per pair. This minimal weight is designed to keep your rotational mass low, ensuring your wheels remain responsive and agile.