Honda CB 750SC Nighthawk (1984-86)

The Honda CB 750SC Nighthawk S was released between 1984 and 1986. It had a four-stroke, transverse four-cylinder DOHC engine with 4 valves per cylinder, 749cc capacity, and a bore x stroke of 62 x 62 mm. The compression ratio was 9.3:1, and the lubrication style was wet sump. It was equipped with 4x 30mm Keihin carburetors and CDI ignition. The bike had a maximum power output of 70 hp at 7200 rpm and maximum torque of 56.2 Nm at 7500 rpm. The clutch was wet plate, and the transmission was 5-speed, with final drive via shaft.

The CB 750SC Nighthawk S had a dual downtube, full-cradle mild steel frame and was supported by 37mm air-assisted front forks and dual shocks in the rear. The front wheel travel was 152 mm, while the rear was 93 mm. The front brakes were made up of two 276mm discs with two-piston calipers, while the rear brake was a 180mm drum. The bike had a rake of 29.6 degrees and a trail of 119 mm.

The height of the bike was 792 mm, while the length was 2184 mm, and the width was 800 mm. The wheelbase was 1544 mm, and the ground clearance was 163 mm. The dry weight was 213 kg, and the wet weight was 226 kg. The bike had a fuel capacity of 16 litres, average consumption of 42.2 mpg, and could achieve a top speed of 131.2 mph, reaching 102.6 mph in a standing quarter-mile.

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Technical specifications:

Make Model: Honda CB 750SC Nighthawk S

Year: 1984 – 86

Engine: Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.

Capacity: 749 cc / 45.7 cu-in

Bore x Stroke: 62 x 62 mm

Cooling System: Air cooled,

Compression Ratio: 9.3:1

Lubrication: Wet sump

Induction: 4x 30mm Keihin carburetors

Ignition: CDI

Starting: Electric

Max Power: 70 hp / 51.1 kW @ 7200 rpm

Max Torque: 56.2 Nm / 41.5 ft-lb @ 7500 rpm

Clutch: Wet plate

Transmission: 5 Speed

Final Drive: Shadt

Frame: Dual downtube, full cradle, mild steel

Front Suspension: 37mm Air assisted forks

Front Wheel Travel: 152 mm / 5.9 in

Rear Suspension: Dual shocks

Rear Wheel Travel: 93 mm / 3.6 in

Front Brakes: 2x 276mm disc 2 piston caliper

Rear Brakes: 180mm Drum

Front Tyre: 110/90 H16

Rear Tyre: 130/90 H16

Rake: 29.6 degrees

Trail: 119 mm / 4.7 in

Dimensions: Height 792 mm / 31.2 in Length 2184 mm / 86.0 in Width 800 mm / 31.5 in

Wheelbase: 1544 mm / 60.8 in

Ground Clearance: 163 mm / 6.4 in

Dry Weight: 213 lg / 466 lbs

Wet Weight: 226 kg / 497 lbs

Fuel Capacity: 16 Litres / US 4.2 gal

Consumption Average: 42.2 mpg

Standing 1/4 Mile: 13.1 sec / 102.6 mph

Top Speed: 131.2 mph