Segment: Naked / Road
Production years: 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
The Kawasaki Zephyr was a series of naked superbikes with a retro style manufactured by Kawasaki in the 1990s. The Zephyr was available with four engine capacities, such as 400, 550, 750, and 1,100cc displacements, all with an air-cooled system.
The Kawasaki Zephyr 550 packed the air-cooled engine from the GPZ550 but de-tuned for mid-range power and, with several minor cosmetic modifications, installed in good-looking rolling chassis.
In the visual department, the Zephyr 550 was similar to its siblings, packing standard features, such as a round headlight, a one-piece dual seat, a four-into-one exhaust system with the silencer mounted on the right side, and five-spoke lightweight aluminum wheels.
The bike's suspension system comprised a 39 mm telescopic fork on the front and dual Kayaba preload and rebound-adjustable shock absorbers on the rear, delivering optimum suspension performance and handling.
In the braking department, the bike's wheels were fitted with two 300 mm discs coupled to dual-piston calipers on the front and a 245 mm disc tied to a single-piston caliper on the rear, offering optimum stopping power.
In the performance department, the 1991 Kawasaki Zephyr 550 had installed underneath its fuel tank a 553cc four-stroke four-cylinder liquid-cooled engine fed by four Keihin carburetors, delivering 50 hp at 10,000 rpm and 41 Nm (30 lb-ft) torque at 6000 rpm.
engine specs | Type: | Air cooled, four stroke transverse four cylinder, DOHC, 2 valves per cylinder | Displacement: | 553 cm3 | Bore X Stroke: | 2.2x2 in OR 56 mm | Compression Ratio: | 9.5:1 | Horsepower: | 50/10000 KW(hp)/RPM | Torque: | 30/6000 lb-ft/RPM OR 41/6000 Nm/RPM | Fuel System: | 4 30mm Keihin carburetors |
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transmission specs | Gearbox: | 6-Speed | Clutch: | Wet multi plate | Primary Drive: | - | Final Drive: | Chain |
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chassis specs | Frame: | - | Front Suspension: | 39mm Telescopic forks | Rear Suspension: | Dual Kayaba shocks | Front Brake: | 2x300mm discs 2 piston calipers | Rear Brake: | Single 245mm disc 1 piston caliper |
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dimension specs | Overall Length: | - | Overall Width: | - | Seat Height: | - | Wheelbase: | - | Ground Clearance: | - | Weight: | 441 lbs OR 200 kg | Fuel Capacity: | 3.9 gallons OR 14.8 L |
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tyres specs | Front: | 110/80-17 | Rear: | 140/70-18 |
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power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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