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Enduro Bikes

2005Aprilia RX 50

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The 2005 Aprilia RX 50 is a lightweight enduro bike designed for young and novice off-road riders seeking affordable entry into dirt biking. Its liquid-cooled two-stroke engine delivers responsive performance in technical terrain, while the robust steel frame and six-speed transmission provide reliable capability for trail riding and recreational enduro use.

Capacity
49.7 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Dry weight
92.0 kg
Seat height
890 mm
Power
5.4 HP (4.0 kW)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2005 Aprilia RX 50

vs the 2004
Spec20042005
Front suspension Upside down telescopic fork Upside down telescopic fork, Ø 35 mm inners.
Rear suspension Swing-arm in box section steel Swing-arm in box section , with anti-friction bushings, adjustable monoshock with Aprilia Progressive System action.
Wheelbase 1360 mm (53.5 inches) 1383 mm (54.4 inches)
Other years 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 3Agility 71Comfort 35Off-road 65Touring 15Road manners 40
Off-road & trail65%
Cornering55%
City riding70%
Daily riding40%
Touring15%
Two-up10%
Track15%
Best for
It's designed as a supermoto-styled commuter and playbike for short urban and suburban trips rather than serious performance riding.
Built for
Nimble, light, and eager-revving, it rewards flicking through traffic and tight corners rather than outright straight-line speed.
Not ideal for
It's not the right choice for highway touring, carrying a passenger comfortably, or riders wanting real power on tap.

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 890mm, a rider of 175cm with a 79cm (estimated) inseam will not reach the ground comfortably on the 2005 Aprilia RX 50, with a cramped knee angle of around 80 degrees and an upright 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.

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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
0.0587 HP/kg (dry)
Bore x stroke
40.3 x 39.0 mm
Compression
12.0:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
Electronic, capacitor discharge
Lubrication system
Separate mixing with variable displacement pump
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Multiple disk in oil bath
Dimensions & weight
Wheelbase
1383 mm
Overall length
2053 mm
Overall width
818 mm
Overall height
1330 mm
Seat height
890 mm
Dry weight
92.0 kg
Wet weight
104.0 kg
Fuel capacity
9.50 litres
Ground clearance
Not on record - add it
Chassis & suspension
Frame
Closed cradle split at exhaust level, in high strength steel tubes
Front suspension
Upside down telescopic fork, Ø 35 mm inners.
Rear suspension
Swing-arm in box section , with anti-friction bushings, adjustable monoshock with Aprilia Progressive System action.
Front wheel travel
250 mm
Rear wheel travel
260 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
230 mm
Rear brakes
Single disc
Rear brakes diameter
220 mm
Front tyre
90/90-21
Rear tyre
110/80-18
Other
Color options
Aprilia black/lemon yellow, baltic blue/sky blue, matt black/hot red

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 200220052007201220172022
Capacity 50 cc 50 cc 50 cc 50 cc 50 cc 50 cc
Dry weight 92 kg 92 kg 92 kg 92 kg 92 kg 92 kg
Seat height 890 mm 890 mm 830 mm 830 mm 880 mm 880 mm
Fuel capacity 9.5 L 9.5 L 7 L 7 L 7 L 7 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 RX 50?

The 2005 Aprilia RX 50 has a Capacity of 49.7 ccm (3.03 cubic inches).

What engine power does the Aprilia RX 50 have?

The 2005 Aprilia RX 50 has a Power of 5.4 HP (4.0 kW).

How many gears does the Aprilia RX 50 have?

The 2005 Aprilia RX 50 has a Gearbox of 6-speed.

How much does the Aprilia RX 50 weigh?

The 2005 Aprilia RX 50 has a Dry weight of 92.0 kg (202.8 pounds).

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