| MODEL | BROUGH SUPERIOR JAP 1924 |
| Year | 1924 |
| Engine Type | JAP two-cylinder V, four-stroke, overhead valves with rods and rockers |
| Displacement / Capacity | 995.2 cc |
| Bore X Stroke | 80 x 99 mm |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | About 50 hp |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | Three-speed, separate |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | Single tubular cradle, open below |
| Front Suspension | Elastic (spring) suspension |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | Pulley wedge |
| 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 | About 120 mph / 193 km/h |
A special-purpose racer built around a tuned 1,000 cc JAP V-twin. In 1924 Herbert Le Vack used it to set flying-kilometre and world speed records in France, helping establish the make's performance reputation.
