| General information | 
  
    | Model | Aprilia SX 125 | 
    | Year model | 2021 | 
    | Type | Super motard | 
| Price as new | Euro 3730.  MSRP depends on country, taxes, accessories, etc. | 
    | Rating | 3.7   Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. | 
    
        | Engine and transmission | 
  
    | Engine size | 124.8 ccm (7.62 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 | Ø40 mm USD 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 | 100/80-17 | 
    | Rear tire | 130/70-R17 | 
    | Front brakes | Single disc. Floating calliper. Front wheel only ABS. | 
    | Diameter | 160 mm (6.3 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) | 
    | Reserve fuel capacity | 3.00 litres (0.79 US gallons) | 
    
        | Other specifications | 
  
    | Color options | Red Raceway, Silver Speedway | 
    | Starter | Electric | 
    | Instruments | Digital dashboard | 
| 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 21 Aprilia SX 125 discussion group or the general Aprilia discussion group. | 
| Related bikes | List related bikes for comparison of specs. | 
    
        | Compare with another motorcycle | 
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