1.TPU MATERIAL FOR DURABILITY Made of TPU material, this ultra light 700C gravel bike tube exceptional strength and durability. It has a longer life compared to conventional hoses. 2.SUPERIOR PERFORMANCE With excellent sealing performance, aging resistance, shock absorption and electrical insulation, this hose provides optimal functionality. It guarantees a smooth and driving experience on different terrain. 3.ULTRA LIGHTWEIGHT DESIGN With an ultralight design, this hose is lightweight yet reliable. The road type weighs only 42g, while the gravel type weighs 65g. It helps reduce the weight of your tires and improve acceleration and handling, which improves your overall cycling performance. 4.DURABLE STABILITY Designed to withstand high and low temperatures, this tube maintains stable tire pressure for downhill rides. Its durable and stable performance ensures your even in demanding driving conditions. 5.Wide Compatibility The 700C road tube is suitable for 700 x 18 / 23 / 25 / 28 / 30 / 32C road bikes as well as 700C gravel bikes with tire sizes from 35C to 40C. It is compatible with both brake and disc brake wheelsets and versatility for various cycling setups.