| Aprilia's profilation of this bike | 
  | Heir of Aprilia’s history of success in off-road competitions, the updated SX 125 boasts a sophisticated design, powerful performance and advanced technology that makes this bike for people who want to stand out from the crowd right from the start of their two-wheel career. The SX offers great riding satisfaction to anyone climbing on-board. | 
    
        | General information | 
  
    | Model name | Aprilia SX 125 | 
    | Year model | 2020 | 
    | Type | Super motard | 
    | Rating | 3.0   Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. | 
    
        | Engine and transmission | 
  
    | Engine size | 124.2 ccm (7.58 cubic inches) | 
    | Type of engine | Single cylinder, four-stroke | 
    | Effect | 15.0 HP (10.9  kW)) @ 10500 RPM | 
    | Torque | 11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM | 
    | Compression | 12.5:1 | 
    | Bore x stroke | 58.0 x 47.0 mm (2.3 x 1.9 inches) | 
    | Fuel system | Injection. Magneti Marelli M3G ø 32mm ECU | 
    | Ignition | Electronic with CDI capacity discharge | 
    | Lubrication system | Wet sump | 
    | Cooling system | Liquid | 
    | Gearbox | 6-speed | 
    | Transmission type | Chain  (final drive) | 
    | Clutch | Multi-plate in oil bath. | 
    | Driveline | Primary drive: Gearbox: 63/19 (3.31).  Final drive: Chain: 17/40 (2.35). | 
    | Emission details | Euro 4 | 
    
        | Chassis, suspension, brakes and wheels | 
  
    | Frame type | Steel perimeter | 
    | Front suspension | Ø 41 mm telescopic upside down fork | 
    | Front wheel travel | 260 mm (10.2 inches) | 
    | Rear suspension | Steel swingarm. Hydraulic monoshock absorber. | 
    | Rear wheel travel | 265 mm (10.4 inches) | 
    | Front tire | 100/80-R17 | 
    | Rear tire | 130/70-R17 | 
    | Front brakes | Single disc. Floating calliper. Front wheel only ABS. | 
    | Diameter | 300 mm (11.8 inches) | 
    | Rear brakes | Single disc. Floating calliper | 
    | Diameter | 220 mm (8.7 inches) | 
    | Wheels | Aluminium spoked wheel. | 
    
        | Physical measures and capacities | 
  
    | Weight incl. oil, gas, etc | 134.0 kg (295.4 pounds) | 
    | Seat height | 880 mm (34.6 inches) If adjustable, lowest setting. | 
    | Wheelbase | 1350 mm (53.1 inches) | 
    | Fuel capacity | 10.00 litres (2.64 US gallons) | 
    
        | Other specifications | 
  
    | Color options | Black/grey/red | 
    | Starter | Electric | 
| Update specs | Report missing specs or required updates. | 
    
        | Further information | 
  | Insurance costs | Compare US insurance quotes from the nation's top providers. | 
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. | 
| Ask questions | Join the 20 Aprilia SX 125 discussion group or the general Aprilia discussion group. | 
| Related bikes | List related bikes for comparison of specs. | 
    
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