| Attribute | CZ 250 MotoCross Type 980.5 × | Beta Rev 3 250 × |
|---|---|---|
| General | ||
| Production from (year) | 1976 | 2006 |
| Make | CZ | Beta |
| Model | CZ 250 MotoCross Type 980.5 | Beta Rev 3 250 |
| Category | Cross / motocross | Trial |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. JIKOV 2933 SE / JIKOV 2934 CD | Carburettor. Mikuni VM26/208 |
| Displacement (cm³) | 246.2 | 249.5 |
| Power (kw) | 24.8 | - |
| Cooling system | Air | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 70 | 72 |
| Stroke (mm) | 64 | 60.5 |
| Gearbox | 5-speed | 6-speed |
| Ignition | Magneto flywheel, voltage 6V | - |
| Compression | 11.5:1 | 11.4:1 |
| Chassis | ||
| Front suspension | Telescopic oil shock | Hydraulic fork |
| Rear suspension | Hydropneumatic spring unit | Monoshock |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Diameter (mm) | 180 | 175 |
| Frame type | Tubular | Aluminium |
| Front wheel travel (mm) | 200 | 185 |
| Rear wheel travel (mm) | 90 | 165 |
| Other | ||
| Starter | Kick | - |
| Dimensions | ||
| Wheelbase (mm) | 1,420 | 1,310 |
| Kerb weight (kg) | 107.5 | - |
| Dry weight (kg) | 99 | 72 |
| Power/weight ratio | 0.2492 | - |
| Overall height (mm) | 1,090 | 1,120 |
| Overall length (mm) | 2,100 | 1,990 |
| Overall width (mm) | 840 | 850 |
| Ground clearance (mm) | 180 | 310 |
| Performance | ||
| Reserve fuel capacity (l) | - | 1 |
| Fuel capacity (l) | 8 | 3.2 |