Comparison of Enfield Thunderbird TwinSpark 2012 and Enfield Thunderbird TwinSpark 2011 [S]ave
| Attribute |  Enfield Thunderbird TwinSpark 2012 × |  Enfield Thunderbird TwinSpark 2011 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2011 |
| Make | Enfield | Enfield |
| Model | Enfield Thunderbird TwinSpark | Enfield Thunderbird TwinSpark |
| Category | Classic | Classic |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. UCAL 29mm, Constant Vacuum Carburettor | Carburettor. BS29/UCAL |
| Engine details | Roya Enfield Unit Construction Engine, twin sparks | Roya Enfield Unit Construction Engine. |
| Displacement (cm³) | 346 | 346 |
| Power (kw) | 14.5 | 14.5 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 28 | 28 |
| Bore (mm) | 70 | 70 |
| Stroke (mm) | 90 | 90 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Overhead Valves (OHV) | Overhead Valves (OHV) |
| Ignition | Transistorised Coil Ignition | Dual spark |
| Clutch | Wet mulitiplate | Wet mulitiplate |
| Lubrication system | Wet sump | Dry sump |
| Compression | 7.3:1 | 7.3:1 |
| Chassis | ||
| Front suspension | Telescopic With Hydraulic Damping. | Tele Scopic With Hydraulic Damping. |
| Rear suspension | Swing arm With Gas Shock Absorbers. | Swing arm With Gas Shock Absorbers. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 153 | 152 |
| Frame type | Single downtube, using engine as stressed member | Steel |
| Front tyre | 3.25-19 | 3.25-19 |
| Rear tyre | 3.50-19 | 3.50-19 |
| Seat | Dual seat | - |
| Front wheel travel (mm) | 130 | 130 |
| Rear wheel travel (mm) | 80 | 80 |
| Other | ||
| Starter | Electric & kick | Electric |
| Color options |
|
|
| Light | 35W/35W Halogen headlamp | 35W/35W Halogen, MFR |
| Electrical Voltage (V) | 12 | 12 |
| Dimensions | ||
| Wheelbase (mm) | 1,370 | 1,370 |
| Kerb weight (kg) | 187 | - |
| Dry weight (kg) | 163 | 163 |
| Power/weight ratio | 0.089 | 0.089 |
| Overall height (mm) | 1,080 | 1,080 |
| Overall length (mm) | 2,150 | 2,120 |
| Overall width (mm) | 820 | 780 |
| Ground clearance (mm) | 135 | 135 |
| Performance | ||
| Top speed (km/h) | 120 | 120 |
| Fuel capacity (l) | 13.5 | 14.5 |
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