Universal Presta Valve Core: Compatible with all presta valves, our presta valve core replacement is designed to fit seamlessly onto any tubeless mountain bike tires, road bike tires, gravel bike tires, or cross bike tires..Reliable Performance: Engineered for tubeless tires, our presta valve core replacement is designed for optimal performance and a secure seal every time..Replacement Presta Valve Core: If you are having trouble adding air to your tubeless bike tires, replacing the presta valve core is often a simple solution to fixing this issue..Complete Package: In addition to 10 presta valve core replacements, we also provide 1 convenient presta valve core removal tool and 10 valve stem caps, ing you a comprehensive solution for presta valve tire maintenance needs. The presta valve core removal tool makes it easy to remove old presta valve cores and install valve cores. Keep a few presta valve cores and the presta valve removal tool in your bike bag for potential maintenance.