High-Quality Inner Tubes for Dirt and Pit Bikes It’s frustrating when bike parts fail on you when you need them the most. Our range of replacement inner tubes can withstand even the roughest ride. Made from thick and durable butyl rubber, these inner tubes won’t deteriorate easily. It has enough flexibility to expand up to 2.75 inches in width and at the same time, tough enough to hold its shape. The inner tubes’ thick and evenly-molded walls prevent air from seeping out and can reliably hold air for several weeks! Even molding ensures that the inner tubes retain their structural integrity even after reinflation and that there are no thin spots in the rubber that can compromise its airtightness. This thickness also contributes to the inner tubes’ high performance and durability. They are puncture resistant and when they do get punctures, the inner tubes’ built-in self-sealing capabilities keep the situation under control - preventing rapid air loss whether you are out riding on muddy or rocky trails! Are you thinking of using these inner tubes as backups? You can store these inner tubes away for months without worrying about cracks or dry rot! They are weatherproof, durable, have high aging-resistance, and dependable at all times!