Specialized

29in Airlock Presta Valve Tube

The size 29 x 1.75 2.4 inches indicates that the tube is designed to fit tires with a diameter of 29 inches and a width ranging from 1.75 to 2.4 inches. This means if your mountain bike tires fall within this size range, this tube will be a perfect fit.

A Presta valve is a type of valve used for inflating bicycle tires. It is narrower than a Schrader valve (the kind found on car tires) and has a threaded top that you need to unscrew to inflate. Presta valves are preferred for mountain bikes because they are lighter and can handle higher air pressures, which is essential for optimal performance on rough terrains.

The self-sealing feature allows the tube to automatically seal small punctures or leaks. Inside the tube, there is a special sealant that fills any small holes as they occur, preventing air from escaping and keeping your tire inflated. This is particularly useful for mountain biking, where punctures are more common.

Airlock sealant is a specific type of sealant used in the tube that helps prevent air from leaking out. It works by sealing punctures as they happen, ensuring that you can continue riding without worrying about losing air. This is especially beneficial for mountain bikers who encounter sharp objects on trails.

Yes, the sealant used in this tube has a non-toxic formula, meaning it is safe for the environment and does not contain harmful chemicals. This is important for environmentally conscious consumers who want to minimize their impact on health and nature.

The sealant in this tube is designed to not dry out over time, which means it will maintain its ability to seal punctures for a longer period compared to other sealants that may lose effectiveness. This ensures that you can rely on your tube to perform well during your rides without needing frequent replacements.