TPU Inner Tubes MTB 29''/27.5''/26'' Inner Tubes Removable Core Compatible with 1.9-2.5 Ultralight 65g Bike Tube with 45mm Metal Presta Valve for Mountain Bike Tubes

CYCLAMI 1/4-Pack TPU Inner Tubes MTB 29''/27.5''/26'' Inner Tubes Removable Core Compatible with 1.9/2.0/2.1/2.2/2.3/2.4/2.5 Ultralight 65g Bike Tube with 45mm Metal Presta Valve for Mountain Bike Tubes

• Fits Multiple Tire Sizes: The MTB Mountain ultra-lightweight inner tube fits various tire dimensions, compatible with many tire sizes MTB26/27.5/29 inchx1.9/2.0/2.1/2.2/2.3/2.4/2.5.
• Lightweight and Removable Core: Crafted using advanced thermoplastic polyurethane (TPU) technology, each tube weighs only 65 grams. Compared to standard butyl rubber inner tubes, this TPU ultra-light inner tube reduces weight by approximately 60%.The valve core can be replaced. Users may purchase replacement CLlK valve cores on their own.
• Multiple Valve Stem Lengths: TPU inner tubes equipped with a high airtightness 45mm presta valve stem options for precise matching to rim sizes.Featuring premium valve cores and airtight sealing technology to eliminate the risk of air leaks.
• Performance Upgrade: 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. Perfectly suited for endurance rides and complex terrain.
• Inflation Guidelines: 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.