Specialized Standard Inner Tube

Yes, this tube is specifically designed for 650c wheels with an ISO diameter of 571mm. It is compatible with tire widths ranging from 20mm to 28mm.

Yes. Because these tubes feature a removable valve core, you can easily inject liquid sealant directly into the tube to help prevent or seal small punctures.

This manufacturing method ensures the butyl rubber maintains a uniform thickness throughout the entire tube. This consistency helps prevent weak spots, reduces unnecessary weight, and promotes a smoother, more reliable ride.

A 48mm valve length is typically sufficient for standard 650c rims. However, if you are using deep-section aerodynamic rims, you may need a longer valve or a valve extender to ensure the pump head can attach securely.

These tubes are constructed from high-quality butyl rubber, which is the industry standard for its excellent air retention and durability in daily riding conditions.