Specialized 700x28-38c Tube / 40mm Schrader

Specialized tubes use a molded method of construction, ensuring a consistent thickness of butyl rubber.

What Size Do You Need?

Check and compare the relevant numbers on your existing tyre or tube with the sizes listed here.

Which Valve?

Schrader Valve = Fatter Car Type Valve

Presta Valve = Skinny Valve. Also known as French or High Pressure Valve