Features: Engineered with light weight materials, this road bike inner tube reduces bike weight while maintaining puncture resistance, perfect for speed focused cyclists. Its lower rolling resistance minimizes friction and maximizes pedaling efficiency, paired with to prevent aging and ensures durability. Designed for competitive road cyclists, endurances riding enthusiasts who prioritize aerodynamic gains and reliability during intense training or races. Exceling in high speed road cycling, outdoor, and extended rides where stable tire pressure and reduced leakage risks are critical for optimal performances. Features triple reinforced French valving (45/65/85mm) with leakproof seals and standard sizing, ensuring seamless compatibility with most road bikes. Specifications: Materials: Rubber Color: As The Picture Shows Package Weight: approx.50g Styles: 45MM/65MM/85MM (Optional) Size 1: approx.18x15x3.5cm/7.08x5.90x1.37in Package Includes: 1 Box of Bike Inner Tube note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!