ROCKBROS 700x18/32C TPU Inner Tube is a lightweight, high-performance solution for road cyclists who demand speed, efficiency, and reliable air retention from their gear.

• Ultra-Lightweight Design: Only 24–35 g, about 70% lighter than standard butyl tubes, reducing rotational mass to boost acceleration, climbing ease, and overall ride responsiveness.
• 700x18/32C Compatibility: Fits most road bikes, providing dependable performance with common tire widths for a seamless, worry-free install.
• Durable TPU Material: Made from BASF’s eco-friendly, recyclable TPU with high elasticity, offering superior puncture and tear resistance for longer-lasting use.
• Improved Valve & Air Retention: Refined valve design ensures a tight fit with the valve core, delivering stronger air retention and steadier tire pressure between rides.
• Compact & Portable: 50% less space than traditional tubes, making it an ideal backup tube that slides easily into a pocket or saddle bag for on-the-go reliability.
• Installation & Care Guidance: Note to users—do not inflate the inner tube outside the tire, and add a small amount of air before installation to check for leaks. When mounting, inflate just enough to shape the tube so it sits smoothly against the tire's inner wall before pressing into place.

This TPU inner tube translates to tangible benefits: lighter weight that enhances acceleration and climbs, reliable pressure maintenance for more consistent handling on long rides, and a compact backup option that reduces packing bulk without sacrificing resilience. It’s an excellent choice for competitive road cyclists, time-trial enthusiasts, and endurance riders who want a performance edge without compromising on durability. For best results, pair with a compatible tire and follow the installation guidance to ensure a safe, secure fit.