Sportbikes
2015Aprilia RS4 50
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The 2015 Aprilia RS4 50 is an entry-level sportbike designed for young riders and commuters seeking agile performance in a lightweight package. Known for its sharp styling derived from larger Aprilia sport bikes, the RS4 50 delivers nimble handling and responsive acceleration ideal for urban riding. Its liquid-cooled engine and modern features like electric starting make it a practical yet sporty introduction to motorcycle ownership.
- Capacity
- 49.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- 820 mm
- Power
- 5.4 HP (4.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's designed as a lightweight sport replica for learning aggressive riding position and cornering technique at low speeds and low risk.
- Built for
- It has the sharp, aggressive styling and track-inspired ergonomics of a full-size superbike shrunk into a playful, high-revving 50cc package.
- Not ideal for
- It's not suitable for riders wanting real highway speed, long-distance comfort, or the ability to carry a passenger with ease.
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
- 49.9 ccm
- Power
- 5.4 HP (4.0 kW)
- CO2 Emissions
- 2 CO2 g/km
- Engine type
- Single, two-stroke
- Bore x stroke
- 39.9 x 39.9 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- Electronic with CDI capacity discharge
- Lubrication system
- Automatic mixer
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multi-plate wet clutch with mechanical slip system
Dimensions & weight
- Wheelbase
- 1350 mm
- Overall length
- 1953 mm
- Overall width
- 740 mm
- Overall height
- 1138 mm
- Seat height
- 820 mm
- Fuel capacity
- 14.50 litres
- Reserve fuel capacity
- 3.30 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Twin spar aluminium frame
- Front suspension
- 41 mm upside down fork, wheel travel 110 mm
- Rear suspension
- Asymmetric swingarm with monoshock, wheel travel 130 mm
- Front wheel travel
- 110 mm
- Rear wheel travel
- 122 mm
Brakes & wheels
- Front brakes
- Single disc. Radial 4 piston calliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Other
- Color options
- Black, yellow
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 | 2011 | 2012 | 2014 | 2015 | 2016 |
|---|---|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc |
| Seat height | 820 mm | 820 mm | 820 mm | 820 mm | 820 mm |
| Fuel capacity | 14.5 L | 14.5 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 RS4 50?
The 2015 Aprilia RS4 50 has a Capacity of 49.9 ccm (3.05 cubic inches).
What engine power does the Aprilia RS4 50 have?
The 2015 Aprilia RS4 50 has a Power of 5.4 HP (4.0 kW).
How many gears does the Aprilia RS4 50 have?
The 2015 Aprilia RS4 50 has a Gearbox of 6-speed.
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