| MODEL | SUNBEAM MODEL 6 1921 - 1937 |
| Year | 1921 - 1937 |
| Engine Type | Single cylinder, side valve |
| Displacement / Capacity | 492 cc / 30.0 cu in |
| Bore X Stroke | 77 x 105.5 mm |
| Compression Ratio | 5.0:1 |
| Cooling System | Air |
| Max Power | 3.4 kW / 4.5 hp |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 3-speed, wide ratio |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single downtube cradle |
| Front Suspension | Druid forks |
| Rear Suspension | Rigid, spring-loaded saddle |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | 2083 mm / 82 in |
| Overall Width | 813 mm / 32 in |
| Overall Height | — |
| Seat Height | 711 mm / 28 in |
| Wheelbase | 1359 mm / 53.5 in |
| Ground Clearance | — |
| Dry Weight | 136 kg / 300 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25 x 26 in (optional 3.50 x 26) |
| Rear Tyre | 3.25 x 26 in (optional 3.50 x 26) |
| FUEL SYSTEM | |
| Fuel Capacity | 11.4 Litres / 3.0 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A long-stroke side-valve 500 that was tried at the 1921 French Grand Prix and reached production the next year. It won the Senior TT, the last side-valve to do so, and was among the quickest production side-valve singles of its day. It stayed in the range until AMC took over in 1937, wearing the ICI lion badge as the Lion in later years.
