About this item 5.30/4.50-6 With TR87 Metal Valve Stems. The 145/70-6, 5.30-6, 4.50-6 Tube with TR87 valve stem is a multi-fitment, ultra high quality inner tube that covers small ATVs, Go Kartss, and other small vehicles. HEAVY DUTY INNER TUBES. Our tire tubes are up to 4X thicker than the competition. Thicker, high-quality butyl rubber prevents air from penetrating the inner tube for longer-lasting inflation, and it provides better protection from punctures and leaks. DURABLE VALVE PERFORMS BETTER. Our superior vulcanization process creates a strong seal around the TR87 valve stem. FITS MANY WHEELS. Besides go karts and small atvs, these inner tubes are also compatible with many wheelbarrows, dollies, trolleys, garden wagons, generators, air compressors, and quad bikes. THREE YEAR WARRANTY. TYK Industries inner tubes come with a 3-year warranty that covers manufacturing and workmanship defects. Each tube is test-inflated at the factory before boxing, so you can be assured of a successful installation every time.
