Comparison of Aprilia RX 50 2011 and Derbi Senda R DRD Racing [S]ave
| Attribute |  Derbi Senda R DRD Racing × |  Aprilia RX 50 2011 × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2011 |
| Make | Derbi | Aprilia |
| Model | Derbi Senda R DRD Racing | Aprilia RX 50 |
| Category | Enduro / offroad | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | - | Carburettor. DELL’ORTO PVHA 17.5 |
| Engine details | - | Light alloy cylinder |
| Displacement (cm³) | 49.9 | 49.9 |
| Cooling system | - | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 39.9 | 39.9 |
| Stroke (mm) | 40 | 40 |
| Gearbox | 6-speed | 6-speed |
| Driveline | - | Primary drive: Gears. Ratio: 21/78. Final drive: Chain. Ratio: 11/53 |
| Ignition | - | Electronic C.D.I |
| Clutch | - | Multi-plate |
| Lubrication system | - | Automatic mixer |
| Exhaust system | - | Catalytic converter |
| Chassis | ||
| Front suspension | Hydraulic fork | 40 mm hydraulic fork with leading axle. |
| Rear suspension | Monoshock | High strength steel swingarm |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 180 |
| Frame type | - | Steel beam |
| Front tyre | 90/90-21 | 90/90-21 |
| Rear tyre | 110/80-18 | 110/80-18 |
| Wheels | - | Spoked wheels with aluminium rim |
| Front wheel travel (mm) | 195 | 195 |
| Rear wheel travel (mm) | 182 | 180 |
| Other | ||
| Starter | - | Kick |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,400 | 1,406 |
| Overall length (mm) | 2,123 | 2,045 |
| Seat height (mm) | 805 | 830 |
| Performance | ||
| Top speed (km/h) | 100 | - |
| Fuel capacity (l) | 7 | 7 |
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