| MODEL | HONDA CB 400 SUPER FOUR 2006 - 2007 |
| Year | 2006 - 2007 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder, HYPER VTEC |
| Displacement / Capacity | 399 cc / 24.3 cu in |
| Bore X Stroke | 55 x 42 mm |
| Compression Ratio | 11.3:1 |
| Cooling System | Liquid cooled |
| Max Power | 39 kW / 53 PS @ 11000 rpm |
| Max Torque | 38 Nm / 28 lb-ft @ 9500 rpm |
| Ignition | Full transistor, with ignition advance |
| Induction | 4x Keihin VP04B 32 mm carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed, constant mesh |
| Clutch | Wet, multi-plate, coil spring |
| Final Drive | 525 O-ring chain |
| CHASSIS SPECS | |
| Frame | Tubular steel double cradle |
| Front Suspension | Telescopic forks |
| Rear Suspension | — |
| Front Brakes | 2x 296 mm floating discs, 4 piston calipers |
| Rear Brakes | Single 240 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2040 mm / 80.3 in |
| Overall Width | 725 mm / 28.5 in |
| Overall Height | 1070 mm / 42.1 in |
| Seat Height | 755 mm / 29.7 in |
| Wheelbase | 1410 mm / 55.5 in |
| Ground Clearance | 130 mm / 5.1 in |
| Dry Weight | 170 kg / 375 lbs |
| Wet Weight | 190 kg / 419 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/60 ZR17 55W |
| Rear Tyre | 160/60 ZR17 69W |
| FUEL SYSTEM | |
| Fuel Capacity | 18 Litres / 4.75 US gal |
| Fuel Consumption | 37.0 km/L (60 km/h constant speed) |
| Top Speed | — |
Photo: Rikita, CC BY-SA 4.0, via Wikimedia Commons
Photo: Maechan0360, CC BY-SA 3.0, via Wikimedia Commons
The final carburetted SPEC III Super Four. Changes for 2006 were small: larger ignition coils and clear indicator lenses. It kept the gear-dependent HYPER VTEC switching introduced in 2004 and remained Japan's favourite large-licence learner and commuter four.
