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|Engine||124.8 cc (7.62 cu in)|
|Power||28 bhp (21 kW)|
|Torque||14 lb·ft (19 N·m)|
Front : 40 mm (1.6 in) upside down hydraulic fork. Wheel travel 120 mm (4.7 in)
|Brakes||4 piston radial caliper|
|Tires||Tubeless radial. Front 110/70 17-inch; rear 150/60 17-inch|
|Wheelbase||1,345 mm (53.0 in)|
|Dimensions||L: 1,950 mm (77 in)
W: 720 mm (28 in) at handlebars
H: 1,100 mm (43 in) at windshield
|Seat height||805 mm (31.7 in)|
|Weight||126 kg (278 lb) (dry)
|Fuel capacity||14 l (3.1 imp gal; 3.7 US gal)|
|Fuel consumption||40 mpg-US (5.9 L/100 km; 48 mpg-imp)|
The Aprilia RS125 is a GP derived replica sport production motorcycle. It is powered by a Rotax single cylinder 124.8 cc two-stroke engine with Nikasil coated aluminium cylinder block, and liquid cooling.
RS125R Extrema 1992 to 1995
Aprilia introduced the first RS125 in 1992. It has the distinctive features of having an angular tail section and swept front fairing, square cut headlight unit, three spoke rims, air scoops on the upper front middle fairing, Electric starter or kick start on the left hand side and analogue gauges.
RS125 1996 to 1998
The RS125 is revised and the R suffix is dropped. The RS retains a lot of the appearances of the previous RS but there are some notable differences. The first one is a new engine, the Rotax 122, a new improved version to the previous one. The front air intakes are integrated into the front upper portion of the middle fairing. The headlight unit is rounded and the lip is introduced to the top centre. A digital gauge is added in place of the temperature gauge.
RS125 1999 to 2005
The RS125 was revised again in 1999 with more rounded and bulbous fairings, five spoke rims and a single air duct on the driver's right hand side. The lip on the headlight unit is increased in size.
RS125 2006 to 2012
The RS125 was given completely new fairing styling similar to the RSV 1000R. The most notable features are the angular fairings, two headlight units, digital gauge and multispoke Marchesini-styled rims.
The bike's brakes have also been upgraded,featuring a radial four-piston brake caliper and braided brake lines.
In 2008, the bike's electronics were changed froml Nippon-Denso to Piaggio electronics, most notably the new CDI and EFI to meet the more stringent EURO3 Emissions standards.
The line was dropped in 2012 to make way for the new RS4 125, going from a two-stroke to a single-cylinder four-stroke fuel injected system.
Tuono 1999 to 2005
The RS125 Tuono was introduced in 1999 as a semi naked version of the RS125. Production ran until 2005 and was subsequently dropped from the line-up.
The Tuono was essentially an RS125 with the middle and lower portions of the fairings absent and a handlebar fitted on the top yoke.
Race replica colour schemes
Throughout the history of the RS125, various race replica colour schemes and tributes to motorcycle racers have been produced.
- RS 125 Official site.