What category is the 2005 Aprilia RS 125?

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	2005
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.

Performance Profile & Rider Fit

14.8 hp

Peak Power

9.5s

0-60 mph

Best For

Track58%

City62%

Cornering82%

Daily Riding60%

Touring18%

Passenger18%

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.