Suzuki GT100
1975—1977

I have tried to find some Suzuki GT 100 info to put on this page. I would be grateful of any contributions — sales brochures, magazine ads, magazine articles, pictures, specs, facts, corrections etc. Please scan the material in JPEG format (large enough that all the details are visible) and send them to me. Please tell me the source and the publication date if possible. If you send me pictures of your own bike, please follow these instructions.

Suzuki Motor Company says this about the ”machine that can run lightly and is ideal for beginners in road sports” (translated from Japanese): ”The lightweight and tough diamond-shaped frame is equipped with a 100cc 2-stroke single-cylinder rotary disc valve engine that exhibits tenacity at low and medium speeds and high-speed performance with elongation.  Lubrication is our original CCIS with high reliability, and combined with a 5-stage transmission that can effectively draw out the engine output. It also features an automatically adjustable hydraulic disc brake that eliminates the hassle of adjusting the front wheels, improving braking efficiency during high-speed driving.” In other words, the Suzuki GT100 is a small 2-stroke bike, the smallest sibling of the GT family, equipped with a single cylinder 97 cc engine delivering 12 hp. It shared the styling and even some parts with its big brothers.

1977 Suzuki year code: M

The 1975 Suzuki GT100 was offered in two colors, blue and red. The names of the colors could be Jamaica Red (157) and Bright Blue Metallic (279), they were offered by Suzuki for other GT model during that period.

1975 Suzuki GT100, Bright Blue Metallic (279)

1975 Suzuki GT 100 Overall Length: 1 900 mm (74.8 in) Overall Width: 770 mm (30.3 in) Overall Height: 1 055 mm (41.5 in) Seat Height: 770 mm (30.3 in) Wheelbase: 1 225 mm (48.2 in) Ground Clearance: 140 mm (5.5 in) Dry Weight: 90 kg (198 lbs) Engine: Air-cooled 97 cc single cylinder 2-stroke. 12 hp (8.83 kW) @ 8 000 rpm, 10.8 Nm (1.1 kg-m) @ 7 500 rpm Click on the image for larger format.

1975 Suzuki GT 100 Overall Length: 1 900 mm (74.8 in) Overall Width: 770 mm (30.3 in) Overall Height: 1 055 mm (41.5 in) Seat Height: 770 mm (30.3 in) Wheelbase: 1 225 mm (48.2 in) Ground Clearance: 140 mm (5.5 in) Dry Weight: 90 kg (198 lbs) Engine: Air-cooled 97 cc single cylinder 2-stroke. 12 hp (8.83 kW) @ 8 000 rpm, 10.8 Nm (1.1 kg-m) @ 7 500 rpm Sorry, no larger picture available.

1977 Suzuki year code: B

Like other 1977 GT bikes, the GT100 had black side covers. Other than that, and the color scheme, the 1977 GT100 was the sameas before. The specifications of the bike were unchanged. To be honest, I'm a bit puzzled when trying to figure out the model history of the Suzuki GT100. Suzuki Motor Company say that the model was manufactured between 1975 and 1977. Other sources claim the model was launched in July of 1975 and was made only that year. Still, the model appears even in the same catalog that the GP125 that was launched in March 1978. Go figure. Perhaps it was the 1977 model they were selling out. I have found two pictures of a blue 1977 GT100 that look quite different. It can be the same bike, only with quite different color matching. It probably is.

1977 Suzuki GT 100 Overall Length: 1 900 mm (74.8 in) Overall Width: 770 mm (30.3 in) Overall Height: 1 055 mm (41.5 in) Seat Height: 770 mm (30.3 in) Wheelbase: 1 225 mm (48.2 in) Ground Clearance: 140 mm (5.5 in) Dry Weight: 90 kg (198 lbs) Engine: Air-cooled 97 cc single cylinder 2-stroke. 12 hp (8.83 kW) @ 8 000 rpm, 10.8 Nm (1.1 kg-m) @ 7 500 rpm Click on the image for larger format.

1977 Suzuki GT 100 Overall Length: 1 900 mm (74.8 in) Overall Width: 770 mm (30.3 in) Overall Height: 1 055 mm (41.5 in) Seat Height: 770 mm (30.3 in) Wheelbase: 1 225 mm (48.2 in) Ground Clearance: 140 mm (5.5 in) Dry Weight: 90 kg (198 lbs) Engine: Air-cooled 97 cc single cylinder 2-stroke. 12 hp (8.83 kW) @ 8 000 rpm, 10.8 Nm (1.1 kg-m) @ 7 500 rpm Click on the image for larger format.

1975–1977 Suzuki GT100 specifications (Japan) Overall Length: 1 900 mm (74.8 in) Overall Width: 770 mm (30.3 in) Overall Height: 1 055 mm (41.5 in) Seat Height: 770 mm (30.3 in) Wheelbase: 1 225 mm (48.2 in) Ground Clearance: 140 mm (5.5 in) Dry Weight: 90 kg (198 lbs) Engine type: Air-cooled 1-cylinder 2-stroke, rotary disc valve Cylinder displacement: 49 cc Bore x Stroke: 49 x 51.8 mm (1.929 x 2.039 in) Compression ratio: 6.8 :1 Maximum power: 12 hp (8.83 kW) @ 8 000 rpm Maximum torque 10.8 Nm (1.1 kg-m) @ 7 500 rpm Fuel economy: 60 km/l at 50 km/h Carburetor: VM20SC Starter method: Kick Ignition method: Battery Lubrication method: CCI (separate Lubrication) Lubricating oil amount: 1.2 liter Fuel tank capacity: 10.0 liter Clutch type: Wet multi-plate, coil spring Transmission type: 5-speed content mesh Gear ratios: 2.818 / 1.866 / 1.388 / 1.100 /0.909 Primary reduction ratio: 3.173 Secondary reduction ratio: 3.285 Frame type: Double craddle Front brake type: Double-leading drum brake (B1: Disc brake) Rear brake type: Double-leading drum brake Front tire size: 2.50-18-4PR Rear tire size: 2.75-18-4PR Caster: 27°00' Trail: 109 mm (4.29 in) Steering angle: 42° Minimum turning radius: 2.0 m (6.56 feet) Recommended GT100 price in Japan: 1975: 138,000 Yen 1976: 138,000 Yen 1977: 148,000 Yen

More: Suzuki GT models

More: All Suzuki models

Sources: Suzuki

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