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Aprilia RS 125 Spain´s No.1

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Make Model

Aprilia RS 125 R Spain's No.1

Year

2009

Engine

Single cylinder, two stroke, reed valves induction, aluminium cylinder with Nikasil coated liner

Capacity

124.8 cc / 7.5 cu in
Bore x Stroke 54 x 54.5mm
Compression Ratio 12.5:1
Cooling System Liquid cooled

Lubrication

Separate mixing, volumetric pump

Induction

Dell'Orto PHBH 28 carburetor

Ignition

CDI electronic ignition

Starting

Electric

Alternator

12V, 180W

Max Power

21 kW / 28 hp  @ 10500 rpm

Max Torque

19 Nm / 1.9 kgf-m / 14.1 lb-ft @ 9000 rpm

Clutch

Wet, multi-disc

Transmission

6 Speed

Final Drive

Chain

Gear Ratios

1st 10:30 / 2nd 14:29 / 3rd 17:27 / 4th 19:25 / 5th 21:24 / 6th 22:23

Primary Drive

63:19

Final Drive

17:40

Frame

Cast aluminium, reinforced box section, sloping twin-spar frame

Front Suspension

Upside-down forks, Ø 40mm

Front Wheel Travel

120 mm / 4.7 in

Rear Suspension

Monoshock, cast aluminium box section swingarm with asymmetric members
Rear Wheel Travel 120 mm / 4.7 in
Front Brakes Single 320 mm floating discs, 4 piston radial caliper

Rear Brakes

Single 220 mm disc, 2 piston caliper

Wheels

Aluminium alloy

Front Rim

3.00 x 17

Rear Rim

4.00 x 17

Front Tyre

110/70-17

Rear Tyre

150/60-17

Dimensions

Length: 1955 mm / 77.0 in
Width: 720 mm / 28.3 in
Height: 1100 mm / 43.3 in

Wheelbase

1345 mm / 53.0 in

Seat Height

805 mm / 31.7 in

Dry Weight

127 kg / 280 lbs

Wet Weight

142 kg / 313 lbs

Fuel Capacity 

14 L / 3.7 US gal

Top Speed

155 km/h / 96 mph
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European regulations against pollution are killing the 2-stroke engines leaving rabid confined to very specific sectors of the field and mopeds. However, there are still marks "tar" that are reluctant to give this engine for its small sport and keep almost like relics from another era.

The 2008 version of the Aprilia RS 125 is dressed in the colors of the Aprilia RSW 250 with which Jorge Lorenzo bicampeonato has achieved the world's number 1 flanked by two golden wings, the symbol 'X Out' in the dome and the colors of the sponsors that appeared on the fairing of the "two and a half."
Moreover, the RS 125 "Reply Lorenzo" maintains the small single-cylinder liquid-cooled 2-stroke in its free version comes with the 31 hp, but also sold "validated". The price of the RS replica is 5175 euros.

Press Release

APRILIA PUTS ENTHUSIASTS ON TRACK WITH NEW RS 125

Lap for lap, dollar for dollar, this GP-bred track bike outclasses larger displacement alternatives. With the debut of Aprilia’s track-only RS 125 two-stroke single, outsmarting the big bore boys has just become a sport in itself. The Italian manufacturer’s major-thrills track bike with the amazingly low price point is an all-new option for enthusiasts who want the speed, agility and superior handling that only a super-light-weight motorcycle can deliver. Add an Aprilia Racing-inspired, world-championship-bred 125cc engine, superb brakes, spot-on gearing, sizzling Italian styling and the low MSRP of just $5499 and the Aprilia RS 125 becomes the stealth track bike of choice.

As the leading manufacturer in 125cc and 250cc MotoGP competition, Aprilia has perfected the art of engineering championship-winning smaller-displacement race bikes. That expertise, along with Aprilia’s characteristically high level of premium components, makes the new RS 125 the best possible value for enthusiasts who take their track time serious – but who don’t want to sacrifice fun.

As increasing numbers of motorcycle enthusiasts discover the challenge and thrill of honing riding skills on a closed circuit during a group track day or weekend, today’s 600 to 1000cc sport bikes with their huge horsepower and top speed numbers aren’t always the best choice. A smaller displacement machine actually helps to create a better, more confident rider because it requires more input and concentration to score good lap times. At the same time, it allows the rider to really push it to the limit while big displacement bikes often don’t inspire the same level of confidence.

 Engineered for the Ultimate On-Tack Experience

At the heart of the RS 125 is a sophisticated single-cylinder two-stroke, liquid-cooled engine, based on the same race-proven technology that has resulted in a continuous string of competition victories for Aprilia Racing. Able to reach triple digit speeds, the powerplant is packed with technical advancements including a crankcase reed valve intake, anti-vibration balancer shaft and an automatic fuel-oil mixing system. A robust 6-speed transmission delivers the power to the rear wheel with ratios designed to suit a variety of race track configurations.

The RS 125 is fitted with high-performance, race-style, upside-down front forks and a hydraulic rear monoshock mounted in a rising rate linkage, designed to work in concert to deliver the highest degree of race track compliance.

Torsional rigidity is excellent, again thanks to the bike’s development on the world’s toughest race tracks. The RS 125’s lightweight polished cast aluminium twin spar frame is reinforced with cross ribbing for additional strength while the advanced chassis is mated to a box section, aluminium alloy swingarm.

Styled after its championship-winning GP racing siblings, the RS 125 features a distinctive fairing and tail section that has been wind tunnel tested to deliver minimum drag. Riders benefit from improved top speed when tucked in behind the windscreen on long straights. The sleekly aerodynamic bodywork signals that the RS 125 would rather be in motion than standing still.

Fully Loaded for Action

Like all Aprilias, the RS 125 is chock-full of premium components, selected for their quality and competition integrity. Standard equipment includes distinctive, aluminium alloy wheels, radial mount brake calliper, and rear-set style racing footpegs. The track only bike is available with racing livery looks of the 2006 and 2007 world championship 250 Moto GP bike, the exclusive Replica Spain’s N.1.

A Winner for Beginners and a Thriller for Experts

The Aprilia RS 125 is an ideal learning platform for new and beginning riders, as well as a solid base for experienced enthusiasts. Whether an aspiring GP star, club racer or weekend warrior, the RS 125 delivers a thoroughly rewarding experience lap after lap, simply because it allows riders to focus on improving their riding skills. Best of all, maximum grins on the track have never been so cost-efficient.