Features: Light weight inner tube for road bikes dramatically reduces rolling resistance while enhancing climbing efficiency, crafted with performances driven cyclists in mind through advanced materials engineering. High grade thermoplastic polyurethane construction delivers puncture resistance and flexibility, featuring uniform wall thickness for secure installation and optimized pressure distribution during high speed rides. Designed for competitive cyclists, endurances cyclists, and fitness focuses commuters seeking weight reduction without compromising durability in demanding cycling conditions. Ideal for tackling steeps climb during fondos, maintaining speed during criterium races, or enhancing training efficiency on long distance road routes with reduced rotational mass. Engineered with precisions molded sidewalls and a seamless design, these road bike inner tubes combine aerodynamic efficiency with reliability air retention, ensuring consistent performances across varied terrain and weather conditions. Specifications: Color:Eight Choices Dimension:105x70mm/4.13×2.75in 110×50mm/4.33×1.96in 130×40mm/5.11×1.57in Component:Thermoplastic Urethane Package Includes: 1pc Road Bike Inner Tube note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.