Comparison of Aprilia RS4 50 2011 and Derbi GPR Racing 50 [S]ave
| Attribute |  Aprilia RS4 50 2011 × |  Derbi GPR Racing 50 × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2007 |
| Make | Aprilia | Derbi |
| Model | Aprilia RS4 50 | Derbi GPR Racing 50 |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Dell’Orto PHVA – 17.5 | Carburettor. Dell´Orto PHVA-14 |
| Displacement (cm³) | 49.9 | 49.9 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 39.9 | - |
| Stroke (mm) | 40 | - |
| Gearbox | 6-speed | 6-speed |
| Emission details | Euro 2 | - |
| Driveline | Primary drive: Gears. Ratio: 21/78. Final drive: Chain. Ratio: 14/53 | - |
| Ignition | Elettronica C.D.I. | Electronic C.D.I. |
| Clutch | Multi-plate | Multidisc |
| Lubrication system | Automatic mixer | - |
| Compression | 11.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | 40 mm upside down fork | Inverted fork. |
| Rear suspension | Asymmetric swingarm with monoshock | Monoshock |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 180 | 180 |
| Frame type | Twin spar aluminium frame | - |
| Front tyre | 110/80-17 | 110/80-17 |
| Rear tyre | 130/70-17 | 130/70-17 |
| Wheels | light alloy with 6 split spokes, with sealing profile for tubeless tyres | - |
| Front wheel travel (mm) | 110 | 120 |
| Rear wheel travel (mm) | 130 | 110 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
|
|
| Electrical Voltage (V) | 12 | - |
| Dimensions | ||
| Wheelbase (mm) | 1,350 | 1,355 |
| Overall length (mm) | 1,953 | 1,961 |
| Overall width (mm) | 740 | 788 |
| Seat height (mm) | 820 | 800 |
| Performance | ||
| Fuel capacity (l) | 14.5 | 13 |
| Battery capacity (Ah) | 6 | - |
Help · Contact us · Disclaimer · Contributors · Developers · Donate