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Suzuki GN125: history, specs, pictures

The Suzuki GN125 was a single cylinder, four-stroke Cruiser motorcycle produced by Suzuki between 1982 and 2017. It could reach a top speed of 63 mph (101 km/h). Max torque was 6.12 ft/lbs (8.3 Nm) @ 8600 RPM. Claimed horsepower was 10.73 HP (8.0 KW) @ 9600 RPM. This bike shared many engine components with the Off-road oriented DR125.

Suzuki GN125
Also called GN 125, GN125SE
Production 1982 - 2017 (only exported to US 1982-1983)
Class Cruiser
single cylinder, four-stroke
Bore / Stroke 57.0mm x 48.8mm
Compression ratio 9.5:1
Top Speed 63 mph (101 km/h)
Horsepower 10.73 HP (8.0 KW) @ 9600RPM
Torque 6.12 ft/lbs (8.3 Nm) @ 8600RPM
Fuel System carburetor
Spark Plug NGK DR8ESL '91
NGK D8EA '82-83 , '92-97
Battery YUASA YB7-A '82-83 , '91 , '92-97
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: wet multi-disc, manual
Final Drive Chain: 428x114
Front Sprocket 14T
Rear Sprocket 42T
Suspension Front: telescopic
Rear: twin shock, adjustable
Brakes Front: single disc
Rear: expanding brake (drum brake)
Front Tire 2.75-18
Rear Tire 3.50-16
Wheelbase 50.39 inches (1280 mm)
Length 76.57 inches (1945 mm)
Width 32.09 inches (815 mm)
Height 43.7 inches (1110 mm)
Seat Height 30.55 inches (776 mm)
Weight 222.67 pounds (101.0 Kg) (dry), 105.0 kg (wet)
Fuel Capacity 2.72 Gallon (10.30 Liters)
Fuel Consumption 0.32 liters/100 km (312.5 km/l or 735.07 mpg)
Related Suzuki DR125
Suzuki GN125E
Competition Kawasaki BN125A
Manuals Service Manual



The engine was a air cooled single cylinder, four-stroke. A 57.0mm bore x 48.8mm stroke result in a displacement of just 124.0 cubic centimeters. Fuel was supplied via a single overhead cams (SOHC).


The bike has a 5-speed transmission. Power was moderated via the wet multi-disc, manual.


It came with a 2.75-18 front tire and a 3.50-16 rear tire. Stopping was achieved via single disc in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic while the rear was equipped with a twin shock, adjustable. The GN125 was fitted with a 2.72 Gallon (10.30 Liters) fuel tank. The bike weighed just 222.67 pounds (101.0 Kg). The wheelbase was 50.39 inches (1280 mm) long.

1982 GN125ZEdit

1982 Suzuki GN125Z

  • V.I.N. #: JS1NF41A C 100001
  • ENGINE TYPE: 124cc Four-stroke
  • MODEL TYPE: 053
  • COLOR: Black, Red
  • Gold tank and side covers stripes
  • Chrome fenders
  • Spoke wheels

1983 GN125DEdit

1983 Suzuki GN125D

  • V.I.N.#: JS1NF41A D 100001
  • ENGINE TYPE: 124cc Four-stroke
  • MODEL CODE: 053
  • COLOR: Blue, Red
  • Chrome shroud at top of rear shocks

1997 Suzuki GN 125Edit


The 1996 Suzuki GN 125 has, at its heart, an air-cooled, four-stroke, 124cc, single cylinder powerhouse paired to a five-speed manual transmission, and can produce a claimed 11 horsepower and 10 Nm of torque.

In addition, it comes standard with laced wheels, a dual seat with passenger grab rails, a telescopic front fork, dual shocks as a rear suspension, wide handlebars, a chromed headlinght, a chromed exhaust, and a brake disc in the front coupled to a drum brake in the rear.

In MediaEdit