The inner tube for gravel and endurance cycling, the perfect blend of compact dimensions, lightweight and the best puncture protection in the Pirelli range. CinturatoSmarTUBE is the cycling inner tube designed for gravel, adventure and endurance. The tube provides all the benefits of the innovative TPU (Thermoplastic Polyurethane) and thanks to a specific formulation delivers the best performances for those who are looking for superior puncture resistance with low weight and compact size.CinturatoSmarTUBE is a one-of-a-kind inner tube: reduced weight and compact with an unparalleled puncture protection when compared to standard butyl inner tubes.The ultimate solution for the cyclists that take on long travels and explore remote lands, the low weight and compact size are crucial when packing water, food and extra clothing.Compatible with disc and rim brakesPresta valve700x28-35mm is reinforced