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Hyosung GT650 R 2004 Parts & Accessories

Founded in 1978 in Changwon, South Korea, Hyosung Motors & Machinery Inc. established itself as a major East Asian motorcycle manufacturer through an initial technological partnership with Suzuki in 1979. Building licensing agreements allowed Hyosung to develop robust manufacturing capabilities before launching independent designs under its own brand name in 1986. Rebranded under the KR Motors corporate umbrella in 2014, Hyosung gained international recognition for producing accessible, small-to-middleweight V-twin sportbikes, naked roadsters, and cruisers that offered full-sized motorcycle chassis architecture at budget-friendly price points.

Hyosung uses a letter-based coding system to categorize its motorcycles by chassis style and engine displacement:

• GT Series (Comet): Grand Touring / Sport models ("R" for full-fairing sportbike, "S" for half-fairing, un-suffixed for naked roadster)
• GV Series (Aquila / Mirage): Cruiser line featuring low seat heights and V-twin engines
• GD Series (Exiv): Lightweight single-cylinder sport and naked streetfighters
• RT Series (Karion): Dual-sport and utility street bikes with balloon trail tires
• RX / XRX Series: Off-road, enduro, and dual-sport platforms
• ST Series: Custom cruiser variants featuring upgraded ergonomics and accessories

• GT125 / GT125R: Entry-level commuter and sportbike sharing a full-size chassis with larger displacement models, powered by a 124 cc DOHC 75° V-twin engine.
• GT250 / GT250R (Comet): Popular 249 cc oil/air-cooled V-twin middleweight roadster and fully-faired sportbike, featuring twin front disc brakes and aggressive sport ergonomics.
• GT650 / GT650S / GT650R: Flagship middleweight performance series powered by a liquid-cooled 647 cc 90° V-twin producing around 72 HP, equipped with an adjustable upside-down front fork and tubular steel trellis frame.
• GD250N / GD250R (Exiv): Lightweight single-cylinder naked streetfighter and fully-faired sportbike platform powered by a liquid-cooled 249 cc DOHC engine.

• GV125 / GV125S Aquila: Entry-level cruiser utilizing a unique small-displacement V-twin engine wrapped in full-sized custom cruiser styling.
• GV250 Aquila / Mirage: Lightweight cruiser featuring a 249 cc V-twin engine, classic teardrop fuel tank, low seat height, and chrome finishes.
• GV300S Aquila: Modern bobber-style cruiser featuring a liquid-cooled 296 cc 60° V-twin engine, short fenders, blackout finishes, and fat street tires.
• GV650 Aquila Pro / Sport Cruiser: High-performance power cruiser utilizing the liquid-cooled 647 cc V-twin engine, belt final drive, wide rear tire, and forward-mounted controls.
• ST7 / GV700: High-displacement custom cruiser powered by a 678 cc liquid-cooled V-twin designed for long-distance highway touring.

• RT125 Karion: Fun-focused dual-sport bike featuring a wide rear balloon tire, high ground clearance, and an air/oil-cooled 124 cc single-cylinder engine.
• RX125 / XRX125: Lightweight dual-sport and supermoto platform built with long-travel suspension, knobby or street tires, and disc brakes for trail and city commuting.
• GF125 / GA125 Cruise: Commuter-focused street roadsters and light cruisers produced during Hyosung's early production era.