Supermotos
2025Aprilia SX 125
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The 2025 Aprilia SX 125 is a lightweight sportbike designed for novice and intermediate riders seeking an affordable entry point into performance riding. Known for its agile handling, aggressive styling, and nimble character, it excels in urban commuting and small-displacement racing. The digital dashboard and electric starting enhance its modern appeal for younger riders.
- Capacity
- 124.2 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 115.0 kg
- Seat height
- 880 mm
- Power
- 15.0 HP (11.0 kW) @ 10000 RPM
What’s new for the 2025 Aprilia SX 125
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Top speed | — | 120.0 km/h (74.6 mph) |
| Front brakes | Single disc. Floating calliper | Single disc. ABS. Floating calliper. |
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 usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 124.2 ccm
- Power
- 15.0 HP (11.0 kW) @ 10000 RPM
- Torque
- 11.2 Nm (1.1 kgf-m) @ 8000 RPM
- Engine type
- Single, four-stroke
- Fuel consumption
- 2.60 litres/100 km (38.5 km/l)
- Power/weight ratio
- 0.1304 HP/kg (dry)
- Bore x stroke
- 58.0 x 47.0 mm
- Compression
- 12.6:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- ECU Electronics Magneti Marelli MIUG4 ø 32 mm
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multi plate wet
Performance
- Top speed
- 120.0 km/h (74.6 mph)
Dimensions & weight
- Wheelbase
- 1425 mm
- Overall length
- 2075 mm
- Overall width
- 820 mm
- Overall height
- 1140 mm
- Seat height
- 880 mm
- Dry weight
- 115.0 kg
- Wet weight
- 134.0 kg
- Fuel capacity
- 7.00 litres
Chassis & suspension
- Frame
- Twin-tube steel
- Front suspension
- Upside down fork with Ø 41 mm stanchions.
- Rear suspension
- Steel swingarm, monoshock with progressive link system
- Front wheel travel
- 240 mm
- Rear wheel travel
- 210 mm
Brakes & wheels
- Front brakes
- Single disc. ABS. Floating calliper.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Floating calliper
- Rear brakes diameter
- 220 mm
- ABS
- Yes
- Front tyre
- 100/80-R17
- Rear tyre
- 130/70-R17
Other
- Color options
- Red Flash, Yellow Stark, Silver Alien Blue, Black Spider, White Wonder
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 | 2022 | 2025 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 122 cc | 122 cc | 125 cc | 124 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 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 2025 Aprilia SX 125 has a Capacity of 124.2 ccm (7.58 cubic inches).
What engine power does the Aprilia SX 125 have?
The 2025 Aprilia SX 125 has a Power of 15.0 HP (11.0 kW) @ 10000 RPM.
How many gears does the Aprilia SX 125 have?
The 2025 Aprilia SX 125 has a Gearbox of 6-speed.
What is the torque of the Aprilia SX 125?
The 2025 Aprilia SX 125 has a Torque of 11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM.
How much does the Aprilia SX 125 weigh?
The 2025 Aprilia SX 125 has a Dry weight of 115.0 kg (253.5 pounds).
Shop this bike
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