Pirelli SporTUBE Training Tube (700 x 42-50mm) BIKESPORTZ This large surface also saves

This large surface also saves your foot from sliding on the pedal body and ensures your pedalstroke always feels consistent and reassuring

Reshaped outer plate is perforated to reduce weight and chain suck

The profile of the rim

Active Comfort Technology reduces road vibration and rider fatigue

Pirelli SporTUBE Training Tube (700 x 42-50mm) BIKESPORTZ This large surface also savesThe 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 42 50c 48mm Presta RVC Black Valve Mfr Claimed Weight TBC