Supermotos
2023Aprilia SX 125
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The 2023 Aprilia SX 125 is an agile super motard designed for young and novice riders seeking an accessible introduction to street-focused performance. Powered by a nimble 124.8cc four-stroke engine delivering 15 horsepower, it combines lightweight handling with modern features like fuel injection and liquid cooling. Best known for its playful character and manageable power delivery, the SX 125 excels in urban environments and offers genuine fun for learner-category riders.
- 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) @ 10000 RPM
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
- 124.8 ccm
- Power
- 15.0 HP (10.9 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
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. Floating calliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Floating calliper
- Rear brakes diameter
- 220 mm
- Front tyre
- 110/80-R17
- Rear tyre
- 130/70-R17
Other
- Color options
- Red Flash, Yellow Stark, Silver Alien
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 | 2023 | 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 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 2023 Aprilia SX 125 has a Capacity of 124.8 ccm (7.62 cubic inches).
What engine power does the Aprilia SX 125 have?
The 2023 Aprilia SX 125 has a Power of 15.0 HP (10.9 kW) @ 10000 RPM.
How many gears does the Aprilia SX 125 have?
The 2023 Aprilia SX 125 has a Gearbox of 6-speed.
What is the torque of the Aprilia SX 125?
The 2023 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 2023 Aprilia SX 125 has a Dry weight of 115.0 kg (253.5 pounds).
Shop this bike
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The 2023 Aprilia SX 125 is a sleek and powerful off-road motorcycle that is perfect for beginners and experienced riders alike. With a 124cc engine, this bike offers impressive performance and agility on any terrain. The lightweight design and responsive handling make it easy to maneuver, while the stylish look and advanced technology set it apart from other bikes in its class. Whether you're hitting the trails or cruising around town, the SX 125 delivers a thrilling and reliable ride every time.
Aprilia has once again raised the bar with the 2023 SX 125, offering a winning combination of performance, style, and quality. The bike's advanced features, including a digital instrument panel and ABS braking system, provide added peace of mind and convenience for riders. Its aggressive design and bold color options make it a head-turner on the streets or in the dirt. Overall, the 2023 Aprilia SX 125 is a top choice for anyone looking for a versatile and high-performing off-road motorcycle.
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