Honda CB 550K (1976-78)

The Honda CB 550K Four, manufactured between 1976 and 1978, is a four-stroke, transverse four-cylinder motorcycle with a capacity of 544 cc, a compression ratio of 9.0:1, and four Keihin 22mm carburetors. It has an air-cooled system and a double cradle tubular steel frame. The engine can produce a maximum power of 50 hp at 8500 rpm and a maximum torque of 43.1 Nm at 7400 rpm. It has a five-speed transmission with a chain final drive. The front suspension includes telescopic hydraulic forks with a rear suspension featuring dual shocks with lateral adjustable preload. The front brake system is a single 270mm disc while the rear brake is a drum. The motorcycle has a wheelbase of 1405mm and a seat height of 805mm. It has a dry weight of 191 kg and a fuel capacity of 16 liters. The motorcycle is powered via both electric and kick starting options.

Technical specifications:

Make Model: Honda CB 550K Four

Year: 1976 – 78
Engine: Four stroke, transverse four cylinder, four stroke, SOHC, 2 valves per cylinder.
Capacity: 544 cc / 33.1 cu-in
Bore x Stroke: 58.5 x 50.6 mm
Cooling System: Air cooled
Compression Ratio: 9.0:1
Induction: 4x Keihin, 22 mm carburetors
Ignition: Battery, with points
Starting: Electric & kick
Max Power: 50 hp / 36.5 kW @ 8500 rpm
Max Torque: 43.1 Nm / 31.8 lb-ft @ 7400 rpm
Transmission: 5 Speed
Final Drive: Chain
Frame: Double cradle tubular steal
Front Suspension: 35mm Telescopic hydraulic forks,
Rear Suspension: Dual shocks, lateral adjustable preload
Front Brakes: Single 270mm disc
Rear Brakes: Drum
Front Tyre: 3.25-19
Rear Tyre: 3.75-18
Rake: 64 degrees
Trail: 105 mm / 4.1 ub
Wheelbase: 1405 mm / 55.3 in
Seat Height: 805 mm / 31.7 in
Dry Weight: 191 kg / 421 lbs
Wet Weight: 206.0 kg / 454.2 lbs
Fuel Capacity: 16 Litres / 4.2 US gal