STX wire is an American standard automotive cable mainly used in various motor vehicles such as motorcycles for starting, charging, lighting, signaling, and dashboard circuits. It consists of two parts: a conductor and an insulation layer. The conductor is made of twisted soft copper wire that meets ASTM B requirements, while the insulation layer is usually made of XLPE material. In addition, the STX wire follows the SAE (Society of Automotive Engineers) J1127-2005 standard. When selecting STX wires, users need to choose the appropriate type and specification of wire according to their actual needs.