Comparison of Jawa-CZ 50 Robby 2008 and Polini XP 65 R 2007 [S]ave
| Attribute |  Jawa-CZ 50 Robby 2008 × |  Polini XP 65 R 2007 × |
|---|---|---|
| General | ||
| Production from (year) | 2008 | 2007 |
| Make | Jawa-CZ | Polini |
| Model | Jawa-CZ 50 Robby | Polini XP 65 R |
| Category | Sport | Minibike, cross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 49.5 | 64.9 |
| Power (kw) | 2.2 | - |
| Cooling system | Air | Liquid |
| Torque (Nm) | 3.2 | - |
| Bore (mm) | 39 | 45 |
| Stroke (mm) | 41.4 | 40.8 |
| Gearbox | 4-speed | 6-speed |
| Compression | 8.5:1 | 14.2:1 |
| Chassis | ||
| Front suspension | Telescopic forks 80mm | - |
| Rear suspension | Hydraulic telescopic 70mm | - |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Diameter (mm) | 124 | 150 |
| Frame type | - | Steel |
| Front tyre | 2.50-16 | 60/100-14 |
| Rear tyre | 3.00-16 | 80/100-12 |
| Other | ||
| Starter | Electric & kick | - |
| Dimensions | ||
| Wheelbase (mm) | 1,200 | 1,145 |
| Dry weight (kg) | 87 | 57 |
| Power/weight ratio | 0.0253 | - |
| Seat height (mm) | 730 | 780 |
| Performance | ||
| Top speed (km/h) | 48 | - |
| Fuel capacity (l) | 6.5 | 3 |
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