At the heart of the 1984 Honda CB 700 SC Nighthawk S sport touring motorcycle, Honda relies on a 696 cc (42.5 cu in) oil & air-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 80 HP (58.4 kW) at 10,000 rpm while maximum torque reaches 61 Nm (45 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and shaft drive (cardan) final drive. With a specific output of 114.9 HP per liter and a 2,000 rpm working window between peak torque (8,000 rpm) and peak power (10,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the CB 700 SC Nighthawk S measures 212.7 kg (469 lbs) dry, translating to a power-to-weight ratio of 0.38 HP/kg (2.66 kg per horsepower). The 15.89-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 237 km/h (147 mph).
Specific Output
114.9 HP/L
Power-to-Weight
0.38 HP/kg (2.66 kg/HP)
Power Band Window
8,000–10,000 rpm
Engine
Displacement696.0 ccm (42.47 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power80.0 HP (58.4 kW)) @ 10000 RPM
Torque61.0 Nm (6.2 kgf-m or 45.0 ft.lbs) @ 8000 RPM
Compression9.3:1
Bore x Stroke67.9 x 49.4 mm (2.7 x 1.9 inches)
Fuel SystemCarburettor. Keihin 31 mm constant-vacuum
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
