| MODEL | SUZUKI GN 125 1985 - 1987 |
| Year | 1985 - 1987 |
| Engine Type | Four stroke, single cylinder, SOHC, 2 valve per cylinder |
| Displacement / Capacity | 124 cc / 7.6 cu in |
| Bore X Stroke | 57.0 x 48.8 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | Air cooled |
| Max Power | 9.7 kW / 13 hp @ 9500 rpm |
| Max Torque | 10 Nm / 1.0 kgf-m / 7.4 lb-ft @ 5600 rpm |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single steel cradle |
| Front Suspension | 37 mm hydraulic telescopic forks, 130 mm / 5.1 in travel |
| Rear Suspension | Dual shocks, 91 mm / 3.6 in travel |
| Front Brakes | Single disc, 220 mm, single piston caliper |
| Rear Brakes | Drum, 130 mm |
| DIMENSION SPECS | |
| Overall Length | 1945 mm / 76.6 in |
| Overall Width | 815 mm / 32.1 in |
| Overall Height | 1110 mm / 43.7 in |
| Seat Height | 735 mm / 28.9 in |
| Wheelbase | 1280 mm / 50.4 in |
| Ground Clearance | — |
| Dry Weight | 107 kg / 236 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-18 |
| Rear Tyre | 100/80-16 |
| FUEL SYSTEM | |
| Fuel Capacity | 10.3 Litres / 2.7 US gal / 2.3 Imp gal |
| Fuel Consumption | — |
| Top Speed | 105 km/h / 65.2 mph |
From 1985 the GN125 gained a front disc brake and a power bump to 13 hp, giving the small commuter a more modern feel. It kept the plain steel cradle frame and dual shocks, with no electric start listed. Aimed at novice riders and budget buyers.
