1/4-Pack CYCLAMI TPU Inner Tubes 700 x 18-32c 700c Inner Tubes Ultralight 30g Bike Tube with 45mm/65mm/85mm Presta Valve for Road Bike Tubes(Include Bike Tube Patch Repair Kit)

1/4-Pack CYCLAMI TPU Inner Tubes 700 x 18-32c 700c Inner Tubes Ultralight 30g Bike Tube with 45mm/65mm/85mm Presta Valve for Road Bike Tubes(Include Bike Tube Patch Repair Kit)

• Fits Multiple Tire Sizes: The ultra-lightweight 28-inch 700C road inner tube fits various tire dimensions, including 700x18/23/25/28/32C specifications, ensuring perfect compatibility with all road bike tires.
• Lightweight and Portable: Only 30 grams, made from ultra-light and recyclable TPU, this inner tube is up to 70% lighter than traditional butyl rubber. Ultra-low rolling resistance converts cadence into speed advantage, perfectly balancing durability with lightweight design. Less rotating mass means better handling, faster climbs, and a smoother ride.Ideal for climbing, racing, and fast-paced rides where every gram counts.
• Multiple Valve Stem Lengths: TPU inner tubes are offers 65mm 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. The 28-inch TPU road tire is perfectly suited for endurance rides and complex terrain.Stronger than butyl and more airtight than latex, it improves puncture resistance while staying eco-friendly.
• 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.