The Yamaha 3R4-25450-00-XX 50T rear sprocket is a hardened-steel, OEM-grade gear that transmits power from the chain to the rear wheel in Yamaha motorcycle final-drive systems, using precision-cut teeth for reliable torque transfer. With 50 teeth and a bolt-on rear-wheel mounting design, it is sized for model-specific Yamaha fitment and engineered for heat-treated wear resistance. The MPN 3R4-25450-00-XX identifies an OEM-compatible component commonly used in maintenance, repair, and drivetrain upgrades to restore performance and maintain proper chain alignment.
