| MODEL | AJS MODEL E1 / E2 1925 |
| Year | 1925 |
| Engine Type | V-twin, side valve, detachable head, aluminium pistons |
| Displacement / Capacity | 799 cc / 48.8 cu in |
| Bore X Stroke | 74 x 93 mm |
| Compression Ratio | — |
| Cooling System | Air cooled |
| Max Power | 5.96 kW / 7.99 hp |
| Max Torque | — |
| Ignition | Enclosed Lucas magneto, handlebar control |
| Induction | Binks carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Total loss with hand pump (mechanical pump optional) |
| Gear Box | 3 speed |
| Clutch | Multi plate with cork inserts |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Heavy gauge tubing with steel panelling |
| Front Suspension | Rigid |
| Rear Suspension | Rigid, spring loaded saddle |
| Front Brakes | Internal expanding drum, right foot pedal |
| Rear Brakes | Internal expanding drum, left foot pedal |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1448 mm / 57 in |
| Ground Clearance | 127 mm / 5 in |
| Dry Weight | 143 kg / 316 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 700 x 80 mm |
| Rear Tyre | 700 x 80 mm |
| FUEL SYSTEM | |
| Fuel Capacity | 10.2 Litres / 2.7 US gal |
| Fuel Consumption | — |
| Top Speed | 80 km/h / 50 mph (estimated) |
The E1 and E2 were AJS's 799 cc side-valve V-twin tourers for 1925, built as a more modest 'austerity' version and a better-equipped de luxe. For this year the frame dropped the earlier saddle-tank layout and returned to a tank slung between the top tubes.
