The 450 SX-F Factory Replica, produced in 2012, is a distinguished motocross motorcycle renowned for its race-bred performance and engineering. The brand has a long-standing reputation for building high-performance off-road machines, and this model exemplifies that legacy. Designed for competitive racing, the 450 SX-F Factory Replica features factory-level components and specifications, offering powerful engine delivery and exceptional handling thanks to its advanced WP Suspension. Its potent 449.3 cc four-stroke, single-cylinder engine, coupled with a 5-speed transmission and a hydraulically actuated clutch, provides riders with a competitive edge on the track. This comprehensive Service Repair Workshop Manual in English is designed to assist owners, mechanics, and technicians in maintaining and repairing the 450 SX-F Factory Replica. It covers a wide array of critical systems, including complete engine overhaul, fuel and ignition systems, cooling, transmission, drivetrain, front and rear suspension, brakes, and the electrical system. The manual provides detailed procedures for routine maintenance, engine repair, suspension rebuilds, and electrical diagnostics, alongside essential torque specifications and troubleshooting guides. With its in-depth coverage and focus on technical accuracy, this manual is an indispensable resource for ensuring the optimal performance and longevity of this high-performance motocross motorcycle.