Self-Sealing Bicycle Inner Tube 27.5 x 2.1-2.35

Fail-Safe Self-Sealing Bicycle Inner Tube with Auto Valve (27.5" x 2.1-2.35) is a premium solution for modern mountain (MTB) and cross bikes. This innovative inner tube is pre-filled with a special sealant that automatically and instantly plugs punctures up to 3 mm in diameter while riding. It ensures an uninterrupted journey even after contact with sharp stones, thorns, or other obstacles frequently encountered on forest trails and rough terrain. Crafted from durable butyl rubber, the tube guarantees excellent air retention and long-lasting performance. The practical Auto (AV/Schrader) valve allows for convenient pressure checks and inflation at any gas station. With Fail-Safe technology, you save time and effort by avoiding time-consuming tube changes in the middle of the woods or during races, providing extra security for every ride.