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Sportbikes

2006Aprilia RS 125

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The 2006 Aprilia RS 125 is a sporty lightweight designed for young riders and learners seeking genuine sportbike styling and handling. Its liquid-cooled single-cylinder engine and six-speed gearbox deliver responsive performance suitable for both street riding and track days. The RS 125 gained recognition as one of the most capable 125cc sports machines, balancing affordability with authentic racing-inspired character.

Capacity
124.8 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Wet weight
120.0 kg
Seat height
805 mm
Power
28.2 HP (21.0 kW) @ 10500 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2006 Aprilia RS 125

vs the 2005
Spec20052006
Wet weight 143.0 kg (315.3 pounds) 120.0 kg (264.6 pounds)
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
Speed 12Agility 74Comfort 30Off-road 3Touring 22Road manners 75
Off-road & trail3%
Cornering82%
City riding62%
Daily riding60%
Touring18%
Two-up18%
Track58%
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 us
At 805mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2006 Aprilia RS 125, 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
124.8 ccm
Power
28.2 HP (21.0 kW) @ 10500 RPM
Engine type
Single, two-stroke
Power/weight ratio
0.2350 HP/kg (wet)
Bore x stroke
54.0 x 54.5 mm
Compression
12.5:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Electric
Ignition
CDI capacitor discharge electronic
Lubrication system
Separate mixing with variable displacement volumetric pump
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Multiple disk in oil bath
Performance
Top speed
120.0 km/h (74.6 mph)
Dimensions & weight
Wheelbase
1345 mm
Overall length
1955 mm
Overall width
720 mm
Overall height
1100 mm
Seat height
805 mm
Wet weight
120.0 kg
Fuel capacity
14.00 litres
Dry weight
Not on record - add it
Chassis & suspension
Frame
Cast aluminium, reinforced box section, sloping twin-spar frame.
Front suspension
Upside-down hydraulic action telescopic fork, 40 mm inners.
Rear suspension
Cast aluminium swing-arm with asymmetrical members, thin walled structural shell, single hydraulic monoshock, adjustable spring preload.
Front wheel travel
120 mm
Rear wheel travel
120 mm
Brakes & wheels
Front brakes
Double disc
Front brakes diameter
320 mm
Rear brakes
Single disc
Rear brakes diameter
220 mm
Front tyre
110/70-17
Rear tyre
110/70-17
Other
Comments
Listed power is the full-power version; a learner-restricted version rated 11 kW (15 hp) was also sold.

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 199720042006201120202027
Capacity 125 cc 125 cc 125 cc 125 cc 125 cc 124 cc
Dry weight 117 kg — — — 122 kg —
Seat height 780 mm 805 mm 805 mm 805 mm 820 mm 820 mm
Fuel capacity 13 L 14 L 14 L 14 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

5.0
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Rider rating

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Common questions

What is the engine size of the Aprilia RS 125?

The 2006 Aprilia RS 125 has a Capacity of 124.8 ccm (7.62 cubic inches).

What engine power does the Aprilia RS 125 have?

The 2006 Aprilia RS 125 has a Power of 28.2 HP (21.0 kW) @ 10500 RPM.

How many gears does the Aprilia RS 125 have?

The 2006 Aprilia RS 125 has a Gearbox of 6-speed.

How much does the Aprilia RS 125 weigh?

The 2006 Aprilia RS 125 has a Wet weight of 120.0 kg (264.6 pounds).

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