| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Enfield |
| Model Name | Thunderbird TwinSpark |
| Year | 2011 |
| Category(class) | Classic |
| Engine |
|---|
| Engine Capacity (Displacement) | 346 ccm (21.11 cubic inches) |
| Engine Type | Single cylinder, four-stroke |
| Bore x Stroke | Ø70.0 mm x 90.0 mm (Ø2.76 inches x 3.54 inches) |
| Bore/Stroke Ratio | 0.78 |
| Compression Ratio | 7.3:1 |
| Timing System | OHV |
| Fuel System(Carburetion) | Carburettor. BS29/UCAL |
| Ignition | Dual spark |
| Starter System | Electric |
| Lubrication System | Dry sump |
| Cooling System | Air |
| Powertrain |
|---|
| Clutch | Wet mulitiplate |
| Gearbox | 5 speed |
| Transmission (Final Drive) | Chain |
| Chassis/Suspension/Brakes |
|---|
| Frame Type | Steel |
| Front Suspension | Tele Scopic With Hydraulic Damping. |
| Front Suspension Travel | 130 mm (5.12 inches) |
| Rear Suspension | Swing arm With Gas Shock Absorbers. |
| Rear Suspension Travel | 80 mm (3.15 inches) |
| Front Brakes | Single disc |
| Front Brakes Diameter | Ø280 mm (Ø11.02 inches) |
| Rear Brakes | Expanding brake (drum brake) |
| Rear Brakes Diameter | Ø152 mm (Ø5.98 inches) |
| Front Tire | 325-19 |
| Rear Tire | 350-19 |
| Dimensions |
|---|
| Overall Length | 2120 mm (83.46 inches) |
| Overall Width | 780 mm (30.71 inches) |
| Overall Height | 1080 mm (42.52 inches) |
| Wheelbase | 1370 mm (53.94 inches) |
| Ground Clearance | 135 mm (5.31 inches) |
| Dry Weight | 163.0 kg (359 lb) |
| Fuel Capacity | 14.50 litres (3.83 gallons) |
| Performance |
|---|
| Max Power | 19.80 HP (14.5 kW) at 5600 RPM |
| Max Torque | 28.00 Nm (20.59 ft*lbs) at 4000 RPM |
| Power/Weight Ratio | 0.11 Hp/Kg |
| Top Speed | 120.0 km/h (75mph) |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | 13.9 seconds |
| 0-60 mph | 13.2 seconds |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
