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Specialized

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Airlock Schrader Valve Tube
Black / 700 x 32-50c
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Specialized
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.
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Fair price on tires, quick delivery from Sierra Bicycle Supply, tires and new tubes on the bike and working well. I'm happy.
A must for anyone doing road cycling. It’s made my ride a lot safer as it’ll warn you of incoming kook cyclists too.
This is the second time I have bought a battery for a specialized turbo e-bike. The first bike was a gen 1 and this was for my gen 2 turbo. I like two batteries as it gives me the ability to charge one while I ride using the other. Choose Sierra again for my gen 2 battery because of great service and shipping on buying my first battery from them. If you need anew or secondary battery choose Sierra