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
32/40-622 or 42/50-622, 48mm Valve/ Valve Presta, removeable / Colour Black / Material Butyl / Compatibility Disk and Rim Brakes
