Comparison of CZ 250 MotoCross Type 980.5 and Enfield Thunderbird TwinSpark 2012 [S]ave
| Attribute |  Enfield Thunderbird TwinSpark 2012 × |  CZ 250 MotoCross Type 980.5 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 1976 |
| Make | Enfield | CZ |
| Model | Enfield Thunderbird TwinSpark | CZ 250 MotoCross Type 980.5 |
| Category | Classic | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. UCAL 29mm, Constant Vacuum Carburettor | Carburettor. JIKOV 2933 SE / JIKOV 2934 CD |
| Engine details | Roya Enfield Unit Construction Engine, twin sparks | - |
| Displacement (cm³) | 346 | 246.2 |
| Power (kw) | 14.5 | 24.8 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 28 | - |
| Bore (mm) | 70 | 70 |
| Stroke (mm) | 90 | 64 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Overhead Valves (OHV) | - |
| Ignition | Transistorised Coil Ignition | Magneto flywheel, voltage 6V |
| Clutch | Wet mulitiplate | - |
| Lubrication system | Wet sump | - |
| Compression | 7.3:1 | 11.5:1 |
| Chassis | ||
| Front suspension | Telescopic With Hydraulic Damping. | Telescopic oil shock |
| Rear suspension | Swing arm With Gas Shock Absorbers. | Hydropneumatic spring unit |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 153 | 180 |
| Frame type | Single downtube, using engine as stressed member | Tubular |
| Front tyre | 3.25-19 | - |
| Rear tyre | 3.50-19 | - |
| Seat | Dual seat | - |
| Front wheel travel (mm) | 130 | 200 |
| Rear wheel travel (mm) | 80 | 90 |
| Other | ||
| Starter | Electric & kick | Kick |
| Color options |
| - |
| Light | 35W/35W Halogen headlamp | - |
| Electrical Voltage (V) | 12 | - |
| Dimensions | ||
| Wheelbase (mm) | 1,370 | 1,420 |
| Kerb weight (kg) | 187 | 107.5 |
| Dry weight (kg) | 163 | 99 |
| Power/weight ratio | 0.089 | 0.2492 |
| Overall height (mm) | 1,080 | 1,090 |
| Overall length (mm) | 2,150 | 2,100 |
| Overall width (mm) | 820 | 840 |
| Ground clearance (mm) | 135 | 180 |
| Performance | ||
| Top speed (km/h) | 120 | - |
| Fuel capacity (l) | 13.5 | 8 |
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