PINMOAP 1/2/5PCS 700c Tpu Bicycle Inner Tube Ultralight Road Bike Tire Tube Presta Valve Replacement For Racing Cycling Repair

1/2/5PCS ultra light 28g bicycle TPU inner tube, suitable for 700x18, 23, 25, 28, 30, 32 road bikes, TPU material tires, 45mm 65mm 85mm long French air nozzle technologyProduct Name: TPU Ultra Light Inner TubeMaterial: TPU (thermoplastic polyurethane)Features: Small size/Light weight/High flexibilityBe careful:1. Do not inflate excessively when not installed on the outer tire, otherwise irreversible damage may occur! Please inflate slightly and check for leaks before installation!2. When installing, first inflate the tire to 0.5psi. Ensure that the inner tube is tightly attached to the inner wall of the tire, and then press to adjust the inner tube.3. Inflation pressure exceeding 6psi will result in irreparable expansion. Do not exceed 6psi when the pump is empty.