This manual provides comprehensive parts information for the Hyosung GT250R, a popular entry-level sportbike produced since the mid-2000s. Known for its stylish design and accessible performance, the GT250R features a 4-stroke, V-twin, liquid-cooled engine with a displacement of approximately 249 cc, typically producing around 28-30 horsepower. Its engineering emphasizes reliability and rider enjoyment, making it a favored choice for new riders and enthusiasts seeking an engaging sportbike experience. The motorcycle is built on a rigid steel trellis frame and equipped with a 6-speed transmission, wet multi-plate clutch, and a chain drive system, contributing to its agile handling and responsive power delivery. This parts catalog is designed to be an indispensable resource for owners, mechanics, and technicians. It offers a complete component breakdown, including detailed exploded diagrams and specific manufacturer part numbers for every part of the motorcycle. Coverage extends across all major systems, from engine components, fuel system, and drivetrain to the electrical system, chassis, suspension, braking, wheels, tires, and bodywork. The manual's primary purpose is to facilitate accurate part identification, verification, and procurement, ensuring the correct components are used for maintenance and repair, thereby aiding in the efficient upkeep and longevity of the Hyosung GT250R.