The SporTUBE is the most classic cycling inner butyl tube range, the standard interpretation of the most used air retention system in the world.

A complete range with the size and specification for every kind of cyclist and discipline, from road cycling to urban commuting.

Specifications
700 x 23-30c
48mm Presta RVC

60mm Presta RVC
Black Valve

Mfr Claimed Weight
120g