The Cinturato(TM) SmarTUBE X is Pirelli's latest innovation in the world of tubes designed to offer performance-enhancing solutions for your endurance rides and gravel adventures. The Cinturato(TM) SmarTUBE X is made with TPU, a material that can save up to 70% of the weight while being stronger than butyl as a raw material. This product is 3 times thicker than a standard SmarTUBE, giving you the benefit of being agile while still being extremely protected. This allows you to face any type of terrain and riding conditions. The Cinturato(TM) SmarTUBE X comes with a Presta valve, availabe in two versions covering the most commonly used sizes both on road and gravel set ups.