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2012Aprilia RS4 50

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The 2012 Aprilia RS4 50 is a lightweight sport motorcycle designed for entry-level riders seeking an accessible yet stylish performance bike. Powered by a compact 49.9cc V2 four-stroke engine with liquid cooling and electronic ignition, it delivers nimble handling and manageable power ideal for learners transitioning to sport riding. Known for its aggressive RS styling and reliability, the RS4 50 combines Italian design with practical everyday usability.

Capacity
49.9 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Dry weight
Not on record
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Seat height
820 mm
Power
5.4 HP (4.0 kW)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2012 Aprilia RS4 50

vs the 2011
Spec20112012
Front suspension 40 mm upside down fork 41 mm upside down fork, wheel travel 110 mm
Rear suspension Asymmetric swingarm with monoshock Asymmetric swingarm with monoshock, wheel travel 130 mm
Other years 2011 2012 2013 2014 2015 2016

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 26Agility 84Comfort 35Off-road 10Touring 20Road manners 70
Off-road & trail10%
Cornering85%
City riding75%
Daily riding45%
Touring15%
Two-up15%
Track65%
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 us
At 820mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2012 Aprilia RS4 50, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
49.9 ccm
Power
5.4 HP (4.0 kW)
CO2 Emissions
2 CO2 g/km
Engine type
Single, two-stroke
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
Dry weight
Not on record - add it
Chassis & suspension
Front suspension
41 mm upside down fork, wheel travel 110 mm
Rear suspension
Asymmetric swingarm with monoshock, wheel travel 130 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
300 mm
Rear brakes
Single disc
Rear brakes diameter
218 mm
Front tyre
100/80-17
Rear tyre
130/70-17
Other
Color options
White, black, red/white/green

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 20112012201420152016
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.

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Common questions

What is the engine size of the Aprilia RS4 50?

The 2012 Aprilia RS4 50 has a Capacity of 49.9 ccm (3.05 cubic inches).

What engine power does the Aprilia RS4 50 have?

The 2012 Aprilia RS4 50 has a Power of 5.4 HP (4.0 kW).

How many gears does the Aprilia RS4 50 have?

The 2012 Aprilia RS4 50 has a Gearbox of 6-speed.

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