TPU Inner Tubes MTB29inch x 1.9-2.5 Ultra-Light 65g Bicycle Inner Tube with 45mm Length of Presta Metal Valve for Mountain Bike Spare Tire(Include Bike Tube Patch Repair Kit)

1/4-Pack CYCLAMI TPU Inner Tubes MTB29inch x 1.9-2.5 Ultra-Light 65g Bicycle Inner Tube with 45mm Length of Presta Metal Valve for Mountain Bike Spare Tire(Include Bike Tube Patch Repair Kit)

• Versatile Size Range: The ultra-lightweight MTB 29'' mountain bike inner tube compatible with many tire sizes 1.9/2.0/2.1/2.2/2.3/2.4/2.5.
• Multiple Valve Length Options: TPU inner tubes are offers 45mm Presta valve stem options for precise matching to rim sizes.Featuring premium metal valve cores and airtight sealing technology to eliminate the risk of air leaks.
• Lightweight and Portable: Crafted using advanced thermoplastic polyurethane (TPU) technology, each tube weighs only 65 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 70%, 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.