butyl rubber in the tread area tapering to 2mm sidewalls.

the best performing, self-sealing bicycle tubes available on the market. That's because they feature Specialized's powerful Airlock sealant that coats the tube for permanent protection against punctures. Not only this, but the ...

roses, but like they say, every rose has its thorn. And as we all know, there's no better way to ruin a beautiful ride than with a thorn in the tube. No ...

variety of tube sizes and valve lengths with a proven record of high quality control and consistent availability.

thicker wall to help protect against punctures from thorns and foreign objects.