TPU Inner Tubes 700C x 32-47C/ MTB29 inch x 1.5/1.7 Ultra-Light 50g Removable Core Bicycle Inner Tube with 45mm Length of Presta Metal Valve for All Road or Gravel Bike

CYCLAMI 1/2/4-Pack TPU Inner Tubes 700C x 32-47C/ MTB29 inch x 1.5/1.7 Ultra-Light 50g Removable Core Bicycle Inner Tube(ALLRoad & Gravel)with 45mm Length of Presta Metal Valve for All Road or Gravel Bike

• Versatile Size Range: The ultra-lightweight 28 inch&MTB 29'' bike inner tube fits various tire dimensions, including 700x18/23/25/28/32C specifications, 29'' Mountain Bike, ensuring perfect compatibility with all Road or Gravel Bike.
• Valve Length: TPU inner tubes are With a choice of 45mm, featuring premium metal valves instead of plastic ones, ensuring superior air tightness and reliability. The metal valves are also more corrosion-resistant.The valve core can be replaced. Users may purchase replacement CLlK valve cores on their own.
• Lightweight and Portable: Crafted using advanced thermoplastic polyurethane (TPU) technology, each tube weighs only 50 grams is incredibly compact and easy to carry. Compared to standard butyl rubber inner tubes, this TPU ultra-light inner tube reduces weight by approximately 65%, for improved speed and performance.
• Special TPU Material: Enhanced imported TPU formula resists high temperatures without deformation, maintaining lightweight while significantly improving puncture resistance. Reinforced tear-resistant layers ensure stability during sharp turns and hard braking.Ideal for both competitive racing and daily riding needs.
• Inflation Caution: Begin inflation at 0.5 PSI to ensure the inner tube conforms tightly to the rim. Never exceed 5 PSI in an empty tire to prevent irreversible expansion damage. Thoroughly clean the rim and inner tire surface before installation to prevent foreign objects from puncturing the TPU inner tube.