Specialized Airlock Presta Valve Tube (27.5x1.75/2.4) 40mm

Specialized Airlock Presta Valve Tube (27.5x1.75/2.4) 40mm. Specialized Reference: 03115-0514

We're not afraid to say it, our Airlock Presta Valve Tubes are the best-performing self-sealing tubes around. And it's all because they feature our powerful Airlock sealing solution, which coats the tube for permanent puncture protection. Not only that, but it's designed to work continuously to prevent small leaks that can lead to complete disaster, so you don't have to worry about puncturing when riding in debris. We've also solved the common problem of sealing solution buildup with a completely seamless design, so the tire/tube combination rolls smoothly and evenly every time.