| MODEL | ROYAL ENFIELD CONSTELLATION 1960 |
| Year | 1960 |
| Engine Type | Parallel twin, separate heads and barrels |
| Displacement / Capacity | 700 cc |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Air-cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | Battery, coil and distributor |
| Induction | Twin Amal Monobloc carburettors |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | Albion, separate unit |
| 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 | Over 110 mph when tuned |
The Constellation was Royal Enfield's fast 700 cc parallel twin, a British road-burner that competed with the larger BSA and Triumph twins. Its engine had a strong bottom end and hot cams, with a reputation for being stressed, and the front brake was widely thought weak for the performance. Twin carburettors arrived in 1959 and the clutch was altered in 1961; the model was gone by 1963.
