The SporTube is the most classic cycling butyl inner tube; the standard interpretation of the most-used air retention system in the world. A complete range offers the size and specification for every kind of cyclist and discipline from road cycling to urban commuting.

Butyl construction

Disc and rim brake compatible

Black valve stem

Shaft Type	Threaded
Tube Compound	Butyl
Valve Core	Fixed
Valve	Presta Med 41-55mm
Weight	150
ISO Width (mm)	40
ISO Diameter	622 / Road / 29"
Labeled Size	700 x 32 - 40
Size	700 X 32 - 40Mm