Classic Bikes Custom Bikes Individual Racing Bikes AJP AJS Aprilia Ariel Avinton / Wakan Bajaj Benelli Beta Bimota BMW Brough Superior BRP Cam-Am BSA Buell / EBR Bultaco Cagiva Campagna CCM CF Moto Combat Motors Derbi Deus Ducati Excelsior GASGAS Ghezzi Brian Gilera GIMA Harley Davidson Hero Highland Honda Horex Husaberg Husqvarna Hyosung Indian Jawa Kawasaki KTM KYMCO Laverda Lazareth Magni Maico Mash Matchless Mondial Moto Guzzi Moto Morini MV Agusta MZ / MuZ NCR Norton NSU Paton Peugeot Piaggio Revival Cycles Roland Sands Royal Enfield Sachs Sherco Sunbeam Suzuki SWM SYM Triumph TVS Ural Velocette Vespa Victory Vincent VOR Voxan Vyrus Walt Siegl Walz Wrenchmonkees Wunderlich XTR / Radical Yamaha Zero Video Technical
Complete Manufacturer List

Kawasaki 550 Zephyr

Make Model	Kawasaki 550 Zephyr
Year	1991
Engine	Four stroke Transverse four cylinder. DOHC, 2 valves per cylinder.
Capacity	553 cc / 33.7 cu-in
Bore x Stroke	58 x 52.4 mm
Cooling System	Air cooled
Compression Ratio	9.5:1
Induction	4x 30mm Keihin carburetors
Ignition
Starting	Electric
Max Power	49 hp / 37 kW @ 10000 rpm
Max Torque	40 Nm / 29.5 lb-ft @ 6000 rpm
Transmission	6 Spee
Final Drive	Chain
Front Suspension	39mm Telescopic forks
Rear Suspension	Dual Kayaba shocks with preload and rebound adjustments
Front Brakes	2x 300mm discs 2 piston calipers
Rear Brakes	Single 245mm disc 1 piston caliper
Front Tyre	110/80-17
Rear Tyre	140/70-18
Dry Weight	179 kg / 394.6 lbs
We -Weight	206 kg / 454 lbs
Fuel Capacity	15 Litres / 3.9 US gal

The Zephyr 550 was the smallest of the Zephyr range, and in some ways ahead of its time. Launched in 1991 as a stylish naked retro roadster, it occupied a niche later made very successful by Suzuki's Bandit. It used the air-cooled engine from the GPZ550, de-tuned for mid-range power, with minor cosmetic changes. The elderly engine was installed in a good-looking rolling chassis. A box-section aluminium twin-shock swingarm used sports-style eccentric chain adjusters, while a classically styled fuel tank and chrome-plated exhaust system rounded off the handsome design. The Zephyr's straight-line performance was disappointing though: the engine that produced 48kW (65bhp) in the GPZ550 was retuned to make just 37kW (49bhp).