| General |
| Year | 1981 | 2024 |
| Make Model | Honda CB 750F | Triumph Speed 400 |
| Dimensions |
| Seat Height | 790 mm / 31.1 in | 790 mm / 31.1 in |
| Wheelbase | 1520 mm / 59.8 in | 1377 mm / 54.2 in |
| Ground Clearance | 140 mm / 5.5 in | - |
| Height | - | 1075 mm / 42.3 in |
| Length | - | 2056 mm / 80.9 in |
| Width | - | 795 mm / 31.3 in |
| Weights & Capacities |
| Wet Weight (lbs.) | 557.8 pounds | - |
| Wet Weight (kg) | 253.0 kg | 170 |
| Fuel Capacity (l) | 20.00 litres | - |
| Fuel Capacity (gal.) | 5.28 gallons | - |
| Dry Weight (kg) | 230 | - |
| Dry Weight | 230 kg / 507 lbs | - |
| Fuel Capacity | 20 Litres / 5.2 US gal | 13 Litres / 3.43 US gal |
| Wet Weight | 251 kg / 553.3 lbs | 170 kg / 375 lbs |
| Performance |
| Top Speed (mph.) | 126.1 mph | - |
| Top Speed (km/h) | 203.0 km/h | - |
| Top Speed | 198.3 km/h / 123.2 MPH | - |
| Max Power | 57 kW / 77 hp @ 9000 rpm | 29.4 kW / 40hp @ 8000 rpm |
| Max Torque | 77,4 Nm / 57.0 lb-ft @ 8000 rpm | 38 Nm / 28 ft-lbs @ 6500 rpm |
| Standing Start ¼ Mile | 12.4 sec / 172 km/h | - |
| Engine |
| Fuel Control | DOHC | - |
| Engine Type | In-line four | - |
| Displacement (ci) | 45.64 cubic inches | - |
| Displacement (cc) | 748.00 cc | - |
| Bore x Stroke (mm) | 62.0 x 62.0 mm | - |
| Bore x Stroke (in,) | 2.4 x 2.4 inches | - |
| Stroke | 4 | - |
| Displacement | 748 cc / 45.6 cub in. | 398 cc / 24.3 cu-in |
| Engine Detail | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder | Four stroke, DOHC, single cylinder, 4 valves |
| Bore x Stroke | 62 x 62 mm | 89.0 x 64.0mm |
| Compression Ratio | 9.0:1 | 12.1:1 |
| Cooling System | Air cooled | Liquid cooled |
| Emissions | - | Euro 5 |
| Fuel Consumption | 37.8 mpg | - |
| Fuel Induction | 4x 32mm keihin carburetors | Bosch ride-by-wire EFI |
| Ignition | CDI | - |
| Starter | - | Electric |
| Valve System | 4 | - |
| Drivetrain |
| Clutch | - | Wet multiplate with assist and slip functions |
| Final Drive | Chain | X-ring chain |
| Gearbox | 5-speed | - |
| Transmission / Drive | 5 Speed | 6-Speed |
| Chassis |
| Frame Type | - | Hybrid spine/perimeter, tubular steel, bolt-on rear subframe |
| Suspension - Front | Adjustable telehydraulic fork. | 43mm Showa Big Piston, non-adjustable inverted fork |
| Suspension - Rear | Swinging arm fork with adjustable shocks absorbers. | Single shock, fixed damping with the shock adjustable piggy-back reservior |
| Rake | - | 26.6° |
| Swingarm | - | Twin-sided, cast aluminium alloy |
| Trail | 115 mm / 4.5 in | 101.6 mm / 4 in |
| Wheel Travel - Front | - | 139.7 mm / 5.5 in |
| Wheel Travel - Rear | - | 129.4 mm / 5.1 in |
| Electrical Systems |
| Instrumentation | - | Analogue speedometer with integrated multi-function LCD screen |
| Wheels & Brakes |
| Brakes - Front | 2x 276mm discs | Single 300 mm disc with radially mounted 4-piston caliper |
| Brakes - Rear | Single 297mm disc | Single 230 mm disc with floating caliper |
| References |
| Garbled data, check manually | Electric | - |
| Wheels & Brakes |
| ABS | - | Bosch dual channel |
| Tyres - Front | 3.50 H19 | 110/70 x R17 |
| Tyres - Rear | 4.50 H17 | 150/60 x R17 |
| Wheels - Front | - | 17 x 3 in with 10-spoke cast aluminium alloy rims |
| Wheels - Rear | - | 17 x 4 in with 10-spoke cast aluminium alloy rims |