Comparison of Aprilia SR 50 R Street 2011 and Derbi GPR Nude 50 [S]ave
| Attribute |  Derbi GPR Nude 50 × |  Aprilia SR 50 R Street 2011 × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2011 |
| Make | Derbi | Aprilia |
| Model | Derbi GPR Nude 50 | Aprilia SR 50 R Street |
| Category | Naked bike | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Dell´Ortho PHVA 14 | Carburettor. 17.5 mm throttle body |
| Engine details | - | Intake: Reed valve |
| Displacement (cm³) | 49.9 | 49 |
| Cooling system | Liquid | - |
| Transmission type,final drive | Shaft drive (cardan) | Belt |
| Bore (mm) | - | 40 |
| Stroke (mm) | - | 39.3 |
| Gearbox | 6-speed | Automatic |
| Ignition | Electronic C.D.I. | CDI - capacitor discharge ignition |
| Lubrication system | Oil pump | Separate mixing with mechanical oil pump |
| Compression | 11.5:1 | 12.1:1 |
| Chassis | ||
| Front suspension | Inverted fork. | Hydraulic fork |
| Rear suspension | Monoshock | Engine unit acting as swingarm, secured to the frame by linkages on radial silent block mountings. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 180 | 190 |
| Frame type | - | Split single cradle frame in high tensile strength steel tube |
| Front tyre | 110/80-17 | 130/60-13 |
| Rear tyre | 130/70-17 | 130/60-13 |
| Wheels | - | Five spoke light alloy wheels front and rear: 3.50 x 13´ |
| Front wheel travel (mm) | 120 | 90 |
| Rear wheel travel (mm) | 110 | 70 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
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|
| Dimensions | ||
| Wheelbase (mm) | 1,311 | 1,290 |
| Overall length (mm) | 1,961 | 1,860 |
| Seat height (mm) | 800 | 820 |
| Performance | ||
| Fuel capacity (l) | 13 | 6.5 |
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