This connecting rod crank conrod kit is designed for use in specific motorcycle models, including the 85 SX (2003–2008, 2010–2012), 85 XC (2009), and 105 SX chassis and engine configurations (2004, 2007–2011).It replaces OEM reference numbers 47030015000 and 47030015100.The component converts piston reciprocating into crankshaft rotation, transmitting force to enable torque delivery to the transmission system and auxiliary components such as the valve train.Made from forged steel, it is built to maintain structural integrity under typical riding conditions and supports power transfer in two-stroke engines.The design allows for direct integration into the specified engine assemblies.