Aprilia RS 125 R (2008)

Aprilia RS 125 R (2008)

The Aprilia RS 125 R: a razor-sharp road-legal replica of the Italian manufacturer’s GP machines.

Every detail, from its glossy bodywork to the polished frame and swingarm, screams high-performance racing. And with good reason – beneath the sleek lines lies a potent 125cc Rotax engine, fed by a 28mm DellOrto carburetor and breathing through a reed valve intake. This liquid-cooled two-stroke revs out to 14,000 rpm, unleashing its fury on the track.

As you settle into the saddle, it’s clear this isn’t just a scaled-down version of its bigger siblings – the RS 125 R is a purpose-built racing machine, designed to deliver razor-sharp handling and blistering acceleration. Its GP-inspired frame and suspension work in harmony with the potent engine, making every turn a thrilling experience.

Riding the Aprilia RS 125 R is a true adrenaline rush, and its strict closed-course only designation means you can ride it hard without worrying about emissions or street-legal restrictions. Whether you’re a seasoned pro or an aspiring track day enthusiast, this Italian marvel is sure to leave you grinning from ear to ear.

Key Specifications

Engine TypeSingle cylinder, two stroke, reed valves induction
Engine Capacity124.8 cc / 7.5 cu in
Max Power21 kw / 28 hp
Max Torque19 Nm / 1.9 kgf-m / 14.1 lb-ft @ 9000 rpm
Fuel Tank Capacity14 L / 3.7 US gal
Weight (Wet/Kerb)313 lbs / 142 kg
Seat Height31.7 inches / 805 mm
Aprilia RS 125 R (2008)

All Specifications

Make & Model

ModelAprilia RS 125 R
Year2008

Engine

Engine TypeSingle cylinder, two stroke, reed valves induction
Displacement124.8 cc / 7.5 cu in
Bore x Stroke54 x 54.5mm
Compression Ratio12.5:1
Max Horsepower21 kw / 28 hp
Max Torque19 Nm / 1.9 kgf-m / 14.1 lb-ft @ 9000 rpm
Engine Management SystemDell’Orto PHBH 28 carburetor
Lubrication SystemSeparate mixing, volumetric pump
Cooling SystemLiquid cooled

Performance

Top Speed155 km/h / 96 mph

Transmission

ClutchWet, multi-disc
Gearbox6 Speed
Gear Ratios1st 10:30 / 2nd 14:29 / 3rd 17:27 / 4th 19:25 / 5th 21:24 / 6th 22:23
Final Drive17:40

Electrical & Electronics System

StarterElectric

Chassis & Suspension

Frame TypeCast aluminium, reinforced box section, sloping twin-spar frame
Front SuspensionUpside-down forks, 40mm
Front Suspension Travel4.7 inches / 120 mm
Rear SuspensionMonoshock, cast aluminium box section swingarm with asymmetric members
Rear Suspension TravelSingle 320 mm floating discs, 4 piston radial caliper

Wheels & Brakes

WheelsAluminium alloy
Front Wheel/Rim Size3.00 x 17
Front Tire Size110/70-17
Rear Wheel/Rim Size4.00 x 17
Rear Tire Size150/60-17
Front Brakes120 mm / 4.7 in
Rear BrakesSingle 220 mm disc, 2 piston caliper

Dimension & Weights

Overall Length1955 mm / 77.0 in
Overall Width720 mm / 28.3 in
Overall Height1100 mm / 43.3 in
Seat Height31.7 inches / 805 mm
Wheelbase53.0 inches / 1345 mm
Fuel Tank Capacity14 L / 3.7 US gal
Wet (kerb/curb) Weight313 lbs / 142 kg
Dry Weight115 kg / 254 lbs

Features

  • Liquid-cooled, 125cc 2-stroke engine
  • Manufactured by Austrian engine builder Rotax
  • 28mm DellOrto carburetor for fueling
  • Reed valve intake system
  • Left-hand exhaust for spent fuel
  • Rigid GP-inspired slim twin-spar polished aluminum frame
  • Inverted fork with 40mm diameter
  • Hydraulic rear shock suspension
  • Single 320mm disc brake with radial-mount, four-piston caliper up front
  • Single 220mm, twin-piston caliper on the back of the swingarm
  • Polished and curvaceous swingarm design
  • Oil-injected engine for separate gas and oil topping off
  • Analog tachometer with digital display for speed, trip information, and coolant temperature
  • Handlebars with turn signals, headlight switch, and horn
  • Magneisa painted triple clamp
  • Multi-spoke wheels
  • Gold brake calipers
  • Glossy sponsor-emblazoned bodywork
  • Polished frame
Aprilia RS 125 R (2008)
Aprilia RS 125 R (2008)

Know someone who’d find this useful? Share this page with a friend, your riding club or your favourite motorcycle community.

Explore our collection of Aprilia motorcycles for detailed specifications and model information. Or browse all motorcycle manufacturers.


more Specifications