Supermotos
2018Aprilia SX 125
39 fields on record
The 2018 Aprilia SX 125 is a lightweight supermoto built for young riders and beginners seeking an agile, nimble machine. Its compact 880mm seat height and 120kg weight make it accessible and easy to maneuver, while the responsive braking and suspension deliver confidence in both urban and light off-road environments. Best known for combining playful handling with practical everyday usability.
- Capacity
- 124.8 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 115.0 kg
- Seat height
- 880 mm
- Power
- 15.0 HP (10.9 kW) @ 10500 RPM
What’s new for the 2018 Aprilia SX 125
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Engine capacity | 122.0 ccm (7.44 cubic inches) | 124.8 ccm (7.62 cubic inches) |
| Power | 21.5 HP (15.8 kW) | 15.0 HP (10.9 kW) @ 10500 RPM |
| Torque | 16.0 Nm (1.6 kgf-m or 11.8 ft.lbs) @ 9750 RPM | 10.9 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM |
| Top speed | 120.0 km/h (74.6 mph) | not listed |
| Seat height | 830 mm (32.7 inches) | 880 mm (34.6 inches) |
| Fuel capacity | 10.00 litres (2.64 US gallons) | 7.50 litres (1.98 US gallons) |
| Front suspension | 40 mm upside down hydraulic fork. | Ø 41 mm telescopic upside down fork |
| Rear suspension | Steel swingarm. Hydraulic monoshock with piggy back cylinder. | Hydraulic monoshock absorber with progressive link system. |
| Front brakes | Single disc. Floating caliper with two parallel pistons. | Single disc. Floating calliper |
| Rear brakes | Single disc. Floating caliper with single piston. | Single disc. Floating calliper |
| Wheelbase | 1480 mm (58.3 inches) | 1350 mm (53.1 inches) |
Other years
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's built as a nimble supermoto-styled commuter for weaving through city traffic and having fun on twisty back roads rather than for outright speed.
- Built for
- Playful, flickable, and eager to be thrown around corners, it rewards an energetic riding style over long-distance cruising.
- Not ideal for
- It's not the right choice for riders wanting highway speed, long motorway touring comfort, or serious off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 124.8 ccm
- Power
- 15.0 HP (10.9 kW) @ 10500 RPM
- CO2 Emissions
- 4 CO2 g/km
- Torque
- 10.9 Nm (1.1 kgf-m) @ 8250 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1304 HP/kg (dry)
- Bore x stroke
- 58.0 x 47.0 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Electronic with CDI capacity discharge
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multi-plate in oil bath.
Dimensions & weight
- Wheelbase
- 1350 mm
- Overall length
- 2120 mm
- Overall width
- 835 mm
- Overall height
- 1140 mm
- Seat height
- 880 mm
- Dry weight
- 115.0 kg
- Wet weight
- 120.0 kg
- Fuel capacity
- 7.50 litres
Chassis & suspension
- Frame
- Aluminium perimeter
- Front suspension
- Ø 41 mm telescopic upside down fork
- Rear suspension
- Hydraulic monoshock absorber with progressive link system.
- Front wheel travel
- 240 mm
- Rear wheel travel
- 220 mm
Brakes & wheels
- Front brakes
- Single disc. Floating calliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Floating calliper
- Rear brakes diameter
- 220 mm
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Other
- Color options
- Black/grey/red
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2008 | 2013 | 2017 | 2018 | 2022 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 122 cc | 122 cc | 125 cc | 125 cc | 124 cc |
| Dry weight | 115 kg | 115 kg | 115 kg | 115 kg | 115 kg | 115 kg |
| Seat height | 870 mm | 830 mm | 830 mm | 880 mm | 880 mm | 880 mm |
| Fuel capacity | 10 L | 10 L | 10 L | 7.5 L | 7 L | 7 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Aprilia SX 125?
The 2018 Aprilia SX 125 has a Capacity of 124.8 ccm (7.62 cubic inches).
What engine power does the Aprilia SX 125 have?
The 2018 Aprilia SX 125 has a Power of 15.0 HP (10.9 kW) @ 10500 RPM.
How many gears does the Aprilia SX 125 have?
The 2018 Aprilia SX 125 has a Gearbox of 6-speed.
What is the torque of the Aprilia SX 125?
The 2018 Aprilia SX 125 has a Torque of 10.9 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM.
How much does the Aprilia SX 125 weigh?
The 2018 Aprilia SX 125 has a Dry weight of 115.0 kg (253.5 pounds).
Shop this bike
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The 2018 Aprilia SX 125 is a remarkable motorcycle that has definitely left a lasting impression on me. Its sleek design and powerful engine make it a standout in the 125cc category. The handling and maneuverability of this bike are top-notch, making it a joy to ride on both city streets and winding country roads. The suspension is also impressive, providing a comfortable and smooth ride, even on rough terrain. Overall, the Aprilia SX 125 is a fantastic option for anyone in the market for a reliable and stylish motorcycle.
With its eye-catching design and impressive performance, the 2018 Aprilia SX 125 is a top contender in the 125cc motorcycle market. The powerful engine, smooth suspension, and excellent handling make it a standout choice for riders looking for an exceptional riding experience. Whether you're a beginner or a seasoned rider, the Aprilia SX 125 offers a thrilling and enjoyable ride that's sure to impress. If you're in the market for a reliable and stylish motorcycle, the Aprilia SX 125 is definitely worth considering.
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