| MODEL | HONDA CB4 CONCEPT 2015 |
| Year | 2015 |
| Engine Type | Four cylinder (CB650F based) |
| Displacement / Capacity | 650 cc |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The CB4 Concept was a styling study from Honda's European design team that previewed the 'Neo Sports Cafe' look later used on production CB models. Built on CB650F mechanicals, it combined a single round headlight, bar-end mirrors, a single-sided swingarm, twin exhausts and a swingarm-mounted number plate. It was a show bike only.
