2026 New CYCLAMI Bicycle Inner Tube Green Ultralight TPU French Removable Metal Valve Stem for Road Bike 700C 700 x 18 32C

CautionThis inner tube cannot be inflated a lot when it is not installed in the outer tire, otherwise it will cause irreversible damage!Vacancy pumping more than 5 PSI will result in unrepairable swelling!1.Inflate the TPU inner tube slightly (less than 0.4 BAR/5 PSI), then insert the inner tube into the tire through the valve stem.2.Thread the new TPu inner tube's valve stem through the rim's valve hole. Push the inner tube into the outer tire clockwise(Take care to avoid creases).3.Install the outer tire edge back onto the rim in one direction. (Note: Do not use sharp tire lever tools to avoid puncturing the inner tube).4.Inflate the tires to the recommended pressure and check that they are properly installed.