Specialized 40mm Valve Stem Presta Tube 650b x 2.3-3.0" (584mm)

Our Standard Presta Valve Tubes feature a molded method of construction that ensures a consistent thickness of butyl rubber. This means that they don't have any unnecessary weight and will roll smooth, ride after ride.

Specialized - Standard 650B Presta Valve Tube 27.5/650b x 2.3-3.0 with 40mm stem.