Sportbikes
2021Aprilia RS 125
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2021 Aprilia RS 125 is a learner-legal sportbike for new riders who want genuine racing looks and feel without big-bike intimidation. Its 124.2 cc liquid-cooled single revs to 14.8 hp at 10000 rpm through a six-speed box, wrapped in an aluminium perimeter frame with upside-down forks and ABS. It's best known for bringing full supersport styling and handling to the 125 class.
- Capacity
- 124.2 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 144.0 kg
- Seat height
- 820 mm
- Power
- 14.8 HP (11.0 kW) @ 10000 RPM
What’s new for the 2021 Aprilia RS 125
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Power | 15.0 HP (11.0 kW) @ 10500 RPM | 14.8 HP (11.0 kW) @ 10000 RPM |
| Torque | 11.1 Nm (1.1 kgf-m or 8.2 ft.lbs) @ 8125 RPM | 11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM |
| Dry weight | 122.0 kg (269.0 pounds) | not listed |
| Front brakes | Single disc | Single disc. ABS. Stainless steel disc with radial 4 piston calliper |
| Rear brakes | Single disc | Single disc. Stainless steel disc and calliper with single 30 mm piston. |
Other years
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A pint-sized track-styled sportbike built for spirited backroad riding, carving corners, commuting, and learning proper sport riding skills.
- Built for
- A miniature superbike with real GP-inspired attitude - eager, revvy single that must be worked hard, delivering big-bike thrills at modest speeds.
- Not ideal for
- Not for those wanting outright speed, relaxed touring comfort, two-up practicality, off-road use, or a laid-back upright commuter.
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
- 124.2 ccm
- Power
- 14.8 HP (11.0 kW) @ 10000 RPM
- CO2 Emissions
- 4 CO2 g/km
- Torque
- 11.2 Nm (1.1 kgf-m) @ 8000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1028 HP/kg (wet)
- Bore x stroke
- 58.0 x 47.0 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- 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
- Multiple discs, in oil bath
Performance
- Top speed
- 120.0 km/h (74.6 mph)
Dimensions & weight
- Wheelbase
- 1350 mm
- Overall length
- 1968 mm
- Overall width
- 760 mm
- Overall height
- 1135 mm
- Seat height
- 820 mm
- Wet weight
- 144.0 kg
- Fuel capacity
- 14.50 litres
- Reserve fuel capacity
- 3.50 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Aluminium perimeter
- Front suspension
- Upside down hydraulic fork, 41 mm.
- Rear suspension
- Swingarm. Hydraulic monoshock with adjustable spring preload.
- Front wheel travel
- 110 mm
- Rear wheel travel
- 120 mm
Brakes & wheels
- Front brakes
- Single disc. ABS. Stainless steel disc with radial 4 piston calliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Stainless steel disc and calliper with single 30 mm piston.
- Rear brakes diameter
- 218 mm
- ABS
- Yes
- Front tyre
- 100/80-R17
- Rear tyre
- 130/70-R17
Other
- Color options
- Black Speed, Silver Spped
Specs last verified against published sources: .
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 | 1997 | 2004 | 2011 | 2020 | 2021 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 124 cc | 124 cc |
| Dry weight | 117 kg | — | — | 122 kg | — | — |
| Seat height | 780 mm | 805 mm | 805 mm | 820 mm | 820 mm | 820 mm |
| Fuel capacity | 13 L | 14 L | 14 L | 14.5 L | 14.5 L | 14.5 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 RS 125?
The 2021 Aprilia RS 125 has a Capacity of 124.2 ccm (7.58 cubic inches).
What engine power does the Aprilia RS 125 have?
The 2021 Aprilia RS 125 has a Power of 14.8 HP (11.0 kW) @ 10000 RPM.
How many gears does the Aprilia RS 125 have?
The 2021 Aprilia RS 125 has a Gearbox of 6-speed.
What is the torque of the Aprilia RS 125?
The 2021 Aprilia RS 125 has a Torque of 11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM.
How much does the Aprilia RS 125 weigh?
The 2021 Aprilia RS 125 has a Wet weight of 144.0 kg (317.5 pounds).
Shop this bike
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The 2021 Aprilia RS 125 is a sleek and powerful motorcycle that is sure to turn heads on the road. With its aggressive styling and high-performance engine, this bike is perfect for riders who crave speed and agility. The 125cc engine delivers impressive power, while the lightweight chassis and advanced suspension offer excellent handling and control. Whether you're navigating city streets or hitting the open road, the Aprilia RS 125 provides an exhilarating riding experience that is unmatched in its class.
In addition to its impressive performance, the 2021 Aprilia RS 125 also boasts advanced technology features such as LED lighting, digital display, and a range of safety systems. These modern amenities enhance the overall riding experience and provide added convenience for the rider. With its combination of sporty design, powerful engine, and cutting-edge technology, the Aprilia RS 125 is a top choice for riders looking for a thrilling and dynamic motorcycle.
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