| TECHNICAL SPECIFICATION | 
|---|
| Model ID | 
|---|
| Manufacturer (Make) | Aprilia | 
| Model Name | RX 125 | 
| Year | 2010 | 
| Category(class) | Enduro | 
| Engine | 
|---|
| Engine Capacity (Displacement) | 124 ccm (7.57 cubic inches) | 
| Engine Type | Single cylinder, two-stroke | 
| Bore x Stroke | Ø54.0 mm x 54.5 mm (Ø2.13 inches x 2.15 inches) | 
| Bore/Stroke Ratio | 0.99 | 
| Compression Ratio | 12.5:1 | 
| Fuel System(Carburetion) | Carburettor. ell’Orto VHST 28 | 
| Starter System | Kick | 
| Lubrication System | Separate mixing with variable displacement, volumetric pump. | 
| Cooling System | Liquid | 
| Powertrain | 
|---|
| Clutch | Multi-plate wet clutch. | 
| Gearbox | 6 speed | 
| Transmission (Final Drive) | Chain | 
| Chassis/Suspension/Brakes | 
|---|
| Frame Type | High strength steel frame with double trellis beam and double cradle. Detachable seat frame. | 
| Front Suspension | 40 mm upside down hydraulic fork. Wheel travel 260 mm. | 
| Rear Suspension | Steel swingarm. Hydraulic monoshock with piggy back cylinder. Wheel travel 270 mm. | 
| Front Brakes | Single disc | 
| Rear Brakes | Single disc | 
| Front Tire | 110/70-17 | 
| Rear Tire | 150/60-17 | 
| Dimensions | 
|---|
| Overall Length | 2165 mm (85.24 inches) | 
| Overall Width | 850 mm (33.46 inches) | 
| Seat Height | 830 mm (32.68 inches) | 
| Wheelbase | 1480 mm (58.27 inches) | 
| Dry Weight | 116.0 kg (256 lb) | 
| Performance | 
|---|
| Max Power | 21.45 HP (15.7 kW) | 
| Max Torque | 16.00 Nm (11.76 ft*lbs) | 
| Power/Weight Ratio | 0.17 Hp/Kg | 
| Top Speed | 120.0 km/h (75mph) | 
| Acceleration (dart, speedup) time |  | 
| 0-100 km/h | 8.4 seconds | 
| 0-60 mph | 8 seconds | 
| 1/4 mile | - | 
| 60 to 140 km/h, highest gear | - |