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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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I used to have an Edge 540 Solar which was not touch, and it was truly a pain to use. It felt like it was designed to be touch, then last minute added as a non-touch option. But I did like the data screen and the size. The solar charging was minimal, so when my Edge 540 was stolen I opted for the touch version without solar and I couldn't be happier! It has a good battery life, touch works so much better than the button versions, and the lack of a solar frame helps in certain light conditions as the solar frame would provide some glare once in a while. Highly recommend!
Sierra Bicycle Supply responded to my complaint in less than 2 hours and issued a refund for the defective tube.
This indicates to me that they are a good customer-oriented organization.
ORIGINAL COMPLAINT:
Both tires and tubes were well packaged and arrived safely. (All Condition Armadillo 700X25 and Standard Presta Valve tube 700X20-28C) I installed them and pumped them up with no problem. The next time I went to ride, the rear tube valve had a substantial leak. Loosening the nut and pressing the release pin resulted in a loud air leak that does not stop when I release the pin. The loud leak appears to stop when the nut is firmly tightened. I don't trust this arrangement.
I’ve had several cruxes, including an S works crux and for the money this is quite the value. I did a gravel race and cyclocross Race on my new DSW crux after cracking my S works frame in a Bike Crash. I was really impressed. Sure it’s about a pound heavier, but it has 90% of the performance. Great price point and probably more robust for CX.