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The Cinturato SmarTUBE X inner tube is Pirelli’s latest innovation in the world of inner tubes, designed to offer solutions that improve performance in endurance training and gravel adventures. Cinturato SmarTUBE X is made with TPU, a material that creates an inner tube that is up to 70% lighter and up to 50% more compact yet manages to be as durable as a classic butyl tube. This product is 3 times thicker than a standard SmarTUBE and offers the advantage of being agile yet extremely protected. This allows it to cope with all types of terrain and riding conditions. Cinturato SmarTUBE X comes with a Presta and Schrader valve, available in a full range of heights to fit most every rim and configuration.