We are an authorized Specialized Bike Shop selling only new, fresh and authentic Specialized Airlock Tubes. Our customers love these tubes because they get much fewer flats so they get to enjoy their rides more. Please see what Specialized has to say about these tubes below. Remember our listing is for 2 tubes and includes free shipping in the 48 contiguous states.

We're not afraid to say it—our Airlock Schrader Valve Tubes are the best performing, self-sealing bicycle tubes available. That's because they feature our powerful Airlock sealant that coats the tube for permanent protection against punctures. Not only this, but the sealant is designed to work continuously in order to prevent slow leaks from occurring, so erring complete catastrophe, you won't have to worry about flatting when you're riding over debris. We even addressed the common issue of sealant pooling with a completely homogenous design, so the tire/tube combo will always roll smooth and even.