Ever have a slow leak from your bike tire's Presta valve? These little brass valve cores are the most common fix. This pack gives you a whopping 22 pieces, so you'll have plenty of spares for yourself, your other bikes, or to share with your riding buddies. Each core is made from durable brass and alloy to resist rust and corrosion, and they provide a great airtight seal to stop those annoying leaks. They're the standard Presta valve size: about 26mm (1.02 inches) long and 5mm (0.2 inches) in outer diameter. They're universally compatible with most Presta valve stems, including those from popular tubeless setups like Stan's, Vittoria, Continental, Kenda, and Bontrager, for both road and mountain bikes. Installing one is simple: just use a small valve core tool (or careful pliers) to unscrew the old, leaky core and screw this new one in tightly. It's a tiny part that makes a big difference in keeping your tires properly inflated for a smooth, worry-free ride.
Free 30-day returns 
Free 30-day returns
