Keep your bike rolling with Continental's 700c Race ...
Innertube, a standard weight presta valve tube. The seamless and mold cured construction paired with a removable valve core makes for a practical and reliable tube.
Specialized Standard 650c Inner Tubes with Presta valves ...
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.