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Suzuki SW-1
1992–1994

I have tried to tell the Suzuki SW-1 model history on this page as I know it. 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 1992More Suzuki models from 1992
Suzuki model year code: N
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Suzuki SW-1 is a fully inclosed retro styled 250cc motorbike, made for the Japanese home market. Its engine came from the Suzuki GN250. It had belt drive, twin supertrapp adjustable silencers, dual leather looking seats, rear pop open storage and was finished i Cream, making it look evcen more vintage. Only the cast alloy wheels could tell it was a modern machine.

Born from the Tokyo Creative movement aimed to develop new products for the 21st century, the SW-1 was exhibited at the 1991 Tokyo Motor Show as an inspirational model and attracted many favorable comments. Developed under the concept of casual cruising from city streets to the big outdoors, it features a sleek and fully covered chassis that realizes a perfect harmony with its surroundings, whether in town or in the suburbs. Its unique and curvaceous styling delivers an impression of high refinement. The 250 cm³ air-cooled 4-stroke 1-cylinder engine is paired with an oil cooler and realizes a superb balance between ample torque and rideability. The belt-driven drivetrain is extremely quiet and easy to maintain, and a seesaw-type gear shift pedal was adopted to protect the instep of the rider’s shoe. The SW-1 received the 1992 Good Design Award.

The SW-1 was released in February 1992 and sold in Japan between 1992 and 1994. No changes were made during this time.

'91 Suzuki SW-1 design concept bike
The original SW-1, shown at the 1991 Tokyo Motor Show, looked even more art deco than and retro the production model. It also used a different engine.
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Suzuki SW-1 SW1 NJ45A1992 Suzuki SW-1
Overall Length: 2 105 mm (82.9 in)
Overall Width: 840 mm (33.1 in)
Overall Height: 1 095 mm (43.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 183 kg (403 lbs)
Engine type: Air/oil-cooled 249 cc inline-4, SOHC, 4 valves. 20 hp (15 kW) @ 8 000 rpm, 21 Nm (2.1 kg-m) @ 5 500 rpm
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Click on the image for larger format.
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Suzuki SW-1 SW1 NJ45A1992 Suzuki SW-1
Overall Length: 2 105 mm (82.9 in)
Overall Width: 840 mm (33.1 in)
Overall Height: 1 095 mm (43.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 183 kg (403 lbs)
Engine type: Air/oil-cooled 249 cc inline-4, SOHC, 4 valves. 20 hp (15 kW) @ 8 000 rpm, 21 Nm (2.1 kg-m) @ 5 500 rpm
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Click on the image for larger format.
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Suzuki SW-1 SW1 NJ45A1992 Suzuki SW-1
Overall Length: 2 105 mm (82.9 in)
Overall Width: 840 mm (33.1 in)
Overall Height: 1 095 mm (43.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 183 kg (403 lbs)
Engine type: Air/oil-cooled 249 cc inline-4, SOHC, 4 valves. 20 hp (15 kW) @ 8 000 rpm, 21 Nm (2.1 kg-m) @ 5 500 rpm
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Click on the image for larger format.
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Suzuki SW-1 pictures

'92 Suzuki SW-1 SW1 SW 1'92 Suzuki SW-1 SW1 SW 1

'92 Suzuki SW-1 SW1 SW 1'92 Suzuki SW-1 SW1 SW 1
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I found these pictures on this Japanese website.


1992 SW-1 (NJ45A) specifications (Japan)
Engine Type: Air/oil-cooled single cylinder 4-stroke
Cylinder Volume: 249 cc
Valve system: SOHC, 2 valves per cylinder, chain driven
Inhaust valve opening: 28° BTDC
Inhaust valve closing: 52° ATDC
Exhaust valve opening: 60° BTDC
Exhaust valve closing: 20° ATDC
Lubricating system: Trochoid oil pump type, forced
Bore x Stroke: 72.0 x 61.2 mm (2.83 x 2.41 in.)
Compression Ratio: 9,0:1
Power output: 20 hp (15 kW)/ 8,000 rpm
Torque: 21 Nm (2.1 kg-m)/ 5,500 rpm
Engine dimensions (L x W x H): 330 x 420 x 465 mm (13.0 x 16.5 x 18.3 in.)
Overall Length: 2 105 mm (82.9 in)
Overall Width: 840 mm (33.1 in)
Overall Height: 1 095 mm (43.1 in)
Wheelbase: 1 380 mm (54.3 in)
Seat Height:  
Ground Clearance: 115 mm (4.5 in)
Dry Weight: 183 kg (403 lbs)
Front axle load: 76 kg (167 lbs)
Rear axle load: 107 kg (235 lbs)
Gross weight: 293 kg (645 lbs)
Front axle load: 94 kg (207 lbs)
Rear axle load: 199 kg (438 lbs)
Starting System: Electric Starter
Front Tire: 110/80-16 55S
Rear Tire: 140/70-15 64S
Front Brake: Single hydraulic disc
Rear Brake:  
Fuel Consumption: 50.0 km/liter (50 km/h)
Braking distance: 14 m (Initial speed 50 km/h)
Turning Radius: 2.6 meter (102.4 in)






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