Aprilia RS 125 - 2006 Specifications and Reviews
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.
About the Aprilia RS 125
Changes from the previous model:
An optional racing kit is available (only for use on the track), providing a expansion chamber racing exhaust, racing exhaust vale with control unit and a racing spark plug.
In 2008 the electronics changed from Nippon-Denso to Piaggio components, including both the CDI and EFI. Along with a vacuum fuel tap and a new Dell-orto 28mm VHST carburettor with vacuum pipe extension.
For 2010 A special edition Aprilia RS 125 Replica SBK World Superbike
edition was released carrying Max Biaggi's number 3.
For 2011 A special edition Aprilia RS 125 Replica Alitalia World Superbike edition was released, provided in The Aprilia Alitalia WSB Racing Team livery which coloured a number of successes for Biaggi in 2010.
The RS125 was dropped in 2012 to make way for the new Aprilia RS4 125 moving from a two-stroke to a four-stroke fuel injected engine.
General information | |
| Category | Sport |
| Year | 2006 |
| Model | Aprilia RS 125 |
Engine and Transmission Specifications | |
| Clutch | Multiple disk in oil bath |
| Transmission typefinal drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Separate mixing with variable displacement volumetric pump |
| Ignition | CDI capacitor discharge electronic |
| Fuel system | Carburettor. Dell'Orto PHBH 28 BD |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Compression | 12.5:1 |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 124.80 ccm (7.62 cubic inches) |
Physical measures and capacities | |
| Wheelbase | 1,345 mm (53.0 inches) |
| Overall length | 2,015 mm (79.3 inches) |
| Dry weight | 185.0 kg (407.9 pounds) |
| | |
Aprilia RS 125 dimensions and frame | |
| Rear brakes | Single disc |
| Front brakes | Double disc |
| Rear tyre dimensions | 110/70-17 |
| Front tyre dimensions | 110/70-17 |
| Rear suspension travel | 120 mm (4.7 inches) |
| Rear suspension | Cast aluminium swing-arm with asymmetrical members, thin walled structural shell, single hydraulic monoshock, adjustable spring preload. |
| Front suspension travel | 120 mm (4.7 inches) |
| Front suspension | Upside-down hydraulic action telescopic fork, 40 mm inners. |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Rider Profile
| Best For | Ideal for beginners and A1 licence holders; a forgiving, learner-friendly sportbike that also rewards experienced riders honing technique. |
| Purpose | A pint-sized track-styled sportbike built for spirited backroad riding, carving corners, commuting, and learning proper sport riding skills. |
| Rider Fit | Light 144kg with a committed sport riding position: clip-on bars, 820mm seat and rear-set pegs. Compact and manageable but leaning-forward and firm. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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