This specific tire model features a BIASED ply construction. There might be discrepancies of sizes between brands and models of tires which have this size formatting. As the manufacturers only provide the tire width and the rim diameter with these tires, various brands and models will have size differences. In order to ensure the correct size is purchased, the overall tire diameter that is needed should be checked. This is a Tubed Type Tire (TT), which requires an inner tube to properly function. This purchase does not include the inner tube. Priority Tire only sells tires, we do not have inner tubes in stock.