Yamaha Motor Co., Ltd. 3Y1-25446-10-00 Sprocket

The Yamaha 3Y1-25446-10-00 46T Sprocket is an OEM-grade hardened-steel rear sprocket designed for Yamaha motorcycles’ final-drive systems, transferring power from the drive chain to the rear wheel through precise gear engagement. It has 46 teeth and features precision-cut teeth for durable torque transmission and smooth operation in typical chain-drive installations. Made from heat-treated hardened steel for wear resistance, it is intended for bolt-on rear wheel mounting in model-specific Yamaha applications. This sprocket supports maintenance, repair, and drivetrain upgrades to restore chain alignment and reliable power delivery in the motorcycle's final-drive assembly.