Feature: 1. The TPU material has perfect puncture resistance. It is made in integrated, reduces the possibility of air leakage. 2. 70% weight reduction, even more portable and reduced spinning mass where there are more (wheelsets), more responsive acceleration and resulting improved handling and climbing speed. 3. Resistant to high and low temperatures, stable tyre pressure ensures your safety when going down hill. 4. Suitable for 700c 18-32C road/MTB bicycle tires.Equipped with three different lengths of valve stems (45mm, 65mm, 85mm), suitable for different types of vehicles. 5. Especially suit for long rides or races. Specification: This ultralight bike inner tube is suitable for 700C 18-32C road and MTB bicycles, made of TPU material, and available in 45mm, 65mm, or 85mm valve lengths. Features: The TPU material has perfect puncture resistance. It is made in integrated, with no long seams around the circumference of the inner tube, there is only joints around the valves, reduces the possibility of air leakage. 70% weight reduction, even more portable and reduced spinning mass where there are more (wheelsets), more responsive acceleration and resulting improved handling and climbing speed. Resistant to high and low temperatures, stable tyre pressure ensures your safety when going down hill. Suitable for 700c 18-32C road/MTB bicycle tires.Equipped with three different lengths of valve stems (45mm, 65mm, 85mm), suitable for different types of vehicles. Specifications: Color: Orange Material: TPU+alloy Valves: 45mm / 65mm / 85mm （optional） Apply to: Road Bike 700 X 18C / 23C / 25C / 28C / 30C / 32C Weight: 28g / 1.0oz Package weight: 60g / 2.1oz Package size: 90*37*33mm / 3.5*1.5*1.3in Packing List: 1 * Bike Inner Tube Package List: 1 * Bike Inner Tube