| MODEL | HONDA CB 750F-B 1981 |
| Year | 1981 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 748 cc / 45.6 cu in |
| Bore X Stroke | 62 x 62 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Max Power | 57 kW / 77 hp @ 9000 rpm |
| Max Torque | 77.4 Nm / 57.0 lb-ft @ 8000 rpm |
| Ignition | CDI |
| Induction | 4 x 32 mm Keihin carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Adjustable telehydraulic fork |
| Rear Suspension | Swingarm with adjustable shock absorbers |
| Front Brakes | 2 x 276 mm discs |
| Rear Brakes | Single 297 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 790 mm / 31.1 in |
| Wheelbase | 1520 mm / 59.8 in |
| Ground Clearance | 140 mm / 5.5 in |
| Dry Weight | 230 kg / 507 lbs |
| Wet Weight | 251 kg / 553.3 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.50 H19 |
| Rear Tyre | 4.50 H17 |
| FUEL SYSTEM | |
| Fuel Capacity | 20 Litres / 5.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The F-B was the 1981 model-year CB750F, continuing the twin-cam, four-valve sports four with mainly detail and colour changes. It kept the 19-inch front wheel, triple discs and chain drive, and remained a sharp-handling road bike that could hold its own on track against European rivals.
