gd250 Archives •

Hyosung GD250N & GD250R (Exiv) Resources

The Hyosung GD250 series (known as the Exiv or X-5) represents KR Motors’ bold move into the lightweight single-cylinder market. Though discontinued in 2018, these “thumpers” maintain a strong cult following thanks to their mass-centralised design and punchy performance. Whether you ride the naked GD250N or the fully-faired GD250R, the technical documentation below is essential for maintaining these high-compression singles.

GD250 Series Technical Specifications

Both the N and R variants share the same liquid-cooled, fuel-injected engine platform. The GD250 is famous for its under-slung exhaust and 50:50 weight distribution. Essential maintenance data includes:

Engine: 249cc Single Cylinder, DOHC, 4-Valve, Liquid-Cooled
Power: ~28hp @ 9,500 RPM | 24Nm Torque
Fuel System: Electronic Fuel Injection (EFI)
Oil Capacity: 1.3L to 1.5L (10W40 Semi-Synthetic)
Brakes: 300mm front disc with 4-piston radial caliper

For detailed photo galleries and full parts breakdowns, visit our GD250N Naked Wiki or the GD250R Sports Wiki.

⬇ GD250N / R OWNER’S MANUAL

⬇ GD250 SERIES WORKSHOP MANUAL

Notice: The service manual provided above applies to both the Naked and Sports models as they share the same engine, frame, and electrical architecture. If you notice any missing technical data, please contact the Admin.