Find the perfect bicycle inner tube for you at Escapa from a wide selection of top brands.
The Specialized Airlock 700" 40mm Schrader self-sealing tube is a powerful sealing solution that coats the tube to provide permanent protection against punctures.
Airlock tubes are designed to work continuously to prevent small leaks that lead to a complete disaster, so you don’t have to worry about getting a flat when riding over debris.
In addition, we’ve solved the common problem of sealant buildup with a completely seamless design, so the tire/tube combination rolls smoothly and evenly at all times.
DETAILS
-The best option for reducing punctures.
-Non-toxic.
-Works continuously to prevent small leaks.
-Homogeneous design that prevents clumping.
-Does not dry out like most sealants.