| MODEL | HONDA CBR 400R 1986 |
| Year | 1986 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 399 cc / 24.3 cu in |
| Bore X Stroke | 55 x 42 mm |
| Compression Ratio | 11.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 44 kW / 59 hp @ 12500 rpm |
| Max Torque | 39 Nm / 28.7 lb-ft @ 10000 rpm |
| Ignition | Transistorised CDI |
| Induction | 4x 26 mm flat-side CV carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Forced pressure, wet sump |
| Gear Box | 6 Speed |
| Clutch | Wet multi-plate, coil spring |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Mono shock |
| Front Brakes | 2x discs |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 165 kg / 363.7 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/90-16 |
| Rear Tyre | 130/70-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 14.5 Litres / 3.8 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 1986 CBR400R replaced the CBR400F with a liquid-cooled engine and fully enclosed bodywork in the style of the CBR600F and CBR1000F Hurricane, earning the 'Aero' nickname. Compression went up, the rear end moved to a single shock and claimed dry weight dropped compared with the 400F. It was a Japanese-market sports 400 pitched between road comfort and track style.
