Schwalbe Clik Tubeless Valve Stems No Tubes? No Problems Conventional pump heads are a compromise. Thread-on heads can unthread your valve core mid-pump. Lever-style heads wear out O-rings and eventually lose their grip. The Clik Valve system addresses both problems with a click-engagement mechanism that locks the pump head onto the valve with minimal force and releases cleanly when you're done. For a tubeless setup, that matters - every connection point is a potential air loss event. The large-bore aluminum stem delivers 50% more airflow than a standard tubeless Presta valve, so seating a bead or topping off pressure mid-ride takes less effort and less time. Available in multiple lengths to suit any rim depth, and sold as a set of two. Click-engagement pump interfacelocks the pump head securely onto the valve with one hand and releases without fumbling - no lever fatigue, no cross-threading50% higher airflow than standard tubeless valvesseats beads faster and moves air through the valve more efficiently, reducing the chance of sealant fouling the core during inflation Multiple stem lengthscover everything from low-profile XC rims to deep-section aero and gravel wheels without needing an extension Sold as a set of two: outfit both wheels at once, with no need to hunt down a matching second valve SPECIFICATIONSColor/Length Black - 40mm Black - 60mm Black - 80mm Valve Length40mm60mm80mm Valve Type Clik Clik Clik | Schwalbe | Clik Tubeless Valve Stems 60Mm