Comparison of CR&S VUN Underpowerd and Derbi Mulhacen 659 2007 [S]ave
| Attribute |  Derbi Mulhacen 659 2007 × |  CR&S VUN Underpowerd × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2008 |
| Make | Derbi | CR&S |
| Model | Derbi Mulhacen 659 | CR&S VUN Underpowerd |
| Category | Sport | Naked bike |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | 4 |
| Fuel system | Injection | Injection |
| Displacement (cm³) | 659 | 652 |
| Power (kw) | 35.5 | 21.2 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | - | 37 |
| Bore (mm) | 100 | 100 |
| Stroke (mm) | 84 | 83 |
| Gearbox | 5-speed | 5-speed |
| Ignition | Electronic | - |
| Compression | 10.0:1 | 9.7:1 |
| Chassis | ||
| Front suspension | Inverted telescopic fork | Hydraulic fork |
| Rear suspension | Progressive single lateral monoshock | Swingarm |
| Front brakes | Single disc. Ventilated | Single disc |
| Rear brakes | Single disc. Ventilated | Single disc |
| Diameter (mm) | 245 | 220 |
| Frame type | Single steel beam frame | Steel tubes and machined light alloy plates compound |
| Front tyre | 120/80-18 | 120/70-ZRX17 |
| Rear tyre | 150/70-18 | 160/60-ZRX17 |
| Front wheel travel (mm) | 120 | 120 |
| Rear wheel travel (mm) | 110 | 128 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,370 | 1,368 |
| Dry weight (kg) | 160 | 135 |
| Power/weight ratio | 0.2219 | 0.157 |
| Overall length (mm) | 1,961 | 1,980 |
| Seat height (mm) | 800 | 800 |
| Ground clearance (mm) | - | 150 |
| Performance | ||
| Fuel capacity (l) | - | 14 |
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