Specialized Airlock 700×20-28C Inner Tube – Valve Presta 40mm

Specialized Airlock Air Chamber, the best self-sealing chambers on the market. The sealant that lines the walls is very effective against punctures and also prevents slow leaks. So you won’t have to worry when you ride over debris-filled roads.

• Airlock sealant is the best protection against punctures.
• It is non-toxic.
• It also prevents slow air leaks.
• Always even distribution, no need to shake the chamber.
• Does not dry out.
• 700×20-28C.
• 40mm Presta valve.