Sportbikes

2005Aprilia RS 50

36 fields on record

The 2005 Aprilia RS 50 is an entry-level sport bike designed for young and novice riders seeking lightweight performance. Known for its aggressive styling and nimble handling, this 50cc machine delivers accessible thrills with its liquid-cooled engine and six-speed transmission. The RS 50 combines practical everyday usability with genuine sportbike character, making it ideal for riders building confidence and skills.

Capacity: 49.7 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 89.0 kg
Seat height: 810 mm
Power: 5.4 HP (4.0 kW)

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Other years 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering80%

City riding75%

Daily riding45%

Touring15%

Two-up10%

Track55%

Best for: It's built for nimble, playful sport riding on twisty roads and around town rather than outright speed, thanks to its tiny two-stroke engine and sportbike ergonomics.
Built for: It has the look and handling feel of a proper sportbike shrunk down, with sharp steering and a lightweight chassis that rewards revving the small two-stroke engine hard.
Not ideal for: It's not the right choice for anyone needing real highway speed, long-distance comfort, or the ability to comfortably carry a passenger.

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

Your height

Inseam (optional)

Units

At 810mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2005 Aprilia RS 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: 49.7 ccm
Power: 5.4 HP (4.0 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.0607 HP/kg (dry)
Bore x stroke: 40.3 x 39.0 mm
Compression: 11.8:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Ignition: Electronic, capacitor discharge
Lubrication system: Automatic mixer
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Multiplate wet clutch with slipper system

Dimensions & weight

Wheelbase: 1280 mm
Overall length: 1898 mm
Overall width: 720 mm
Overall height: 1095 mm
Seat height: 810 mm
Dry weight: 89.0 kg
Wet weight: 132.0 kg
Fuel capacity: 13.00 litres

Chassis & suspension

Frame: Sloping twin spar in cast aluminium with thin walled structural shell and cross rib reinforcement
Front suspension: Aprilia 35 mm central pin hydraulic telescopic fork.
Rear suspension: Double member swinging arm in high strength steel with hydraulic monoshock,.
Front wheel travel: 110 mm
Rear wheel travel: 120 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 280 mm
Rear brakes: Single disc
Rear brakes diameter: 220 mm
Front tyre: 90/80-ZR17
Rear tyre: 110/70-ZR17

Other

Color options: Multicolored

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	1998	2004	2005	2010	2015	2021
Capacity	50 cc	50 cc	50 cc	50 cc	50 cc	50 cc
Dry weight	91 kg	89 kg	89 kg	89 kg	89 kg	89 kg
Seat height	810 mm	810 mm	810 mm	815 mm	820 mm	820 mm
Fuel capacity	12.2 L	13 L	13 L	13 L	13 L	14.5 L