WTB 700c NanoAir TPU Tube Description: Trade in your traditional butyl tube that weighs you down and takes up valuable pack space, for the lighter, more compact, and more durable WTB NanoAir TPU Tube. 60% lighter and 1/3 the size, built trail tough with Thermoplastic Polyurethane for an emergency repair on the trail, or a great upgrade that shaves crucial rotational weight. Bad luck happens to strikes twice, no problem, WTB even includes a few patches to keep you rolling. Features: NanoAir TPU (Thermoplastic Polyurethane) tubes are light, compact, and durable Packs down to one-third the size of a traditional butyl tube and is less than half the weight Features a special construction/layup that makes them more durable than traditional butyl tubes Makes for a simple upgrade from standard tubes by reducing rotational weight 2 TPU patches are included Specifications: Diameter: 700c ISO Diameter (ETRTO): 622 Valve Type: Presta Valve Length: 48mm Removable Valve Core: - Puncture Protection: - Weight: 35g (700c x 18 - 32mm) | 49g (700c x 32 - 47mm)view less