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Make Model	Aprilia RS 125 R Lorenzo Replica
Year	2007
Engine	Single cylinder, two stroke, reed valves induction
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	115 kg / 254 lbs
Wet Weight	142 kg / 313 lbs
Fuel Capacity	14 Litres / 3.7 US gal
Top Speed	155 km/h / 96 mph

Review

Aprilia's RS125 lightweight sports bike has been completely revised from 2006 using technology from the company's successful 125cc GP machines and re-styled, after extensive wind-tunnel research, to emphasise its family resemblance to Aprilia's RSV1000 Factory litre-class sport flagship, with twin halogen headlights.

The 2006 model has new 40mm inverted front forks with an RSV Factory-style forged lower triple, and a 320mm, fully floating, front disc brake with a four-piston radial mount calliper
A radial master cylinder modulates deceleration via braided stainless-steel brake hoses
. A radial master cylinder modulates deceleration via braided stainless-steel brake hoses.

It has an oval-section, racing silencer with riveted end plates and a catalytic converter so that it complies with Euro 2 emissions regulations.

The cast-alloy wheels are styled to resemble the crossed-spoke, forged magnesium OZ rims used on the RSV1000 Factory and anodised the same bright blue.

The RS125 also comes with a new analog/digital instrument panel from the RSV1000 with a multi-function display that includes speedometer, coolant temperature gauge and lap timer – there's even provisional for trackside optical telemetry.

The frame is made of cast aluminium alloy with cross-ribbing reinforcement and the box-section, aluminium alloy swing-arm is asymmetrical to allow the exhaust to be tucked as close as possible to the chassis, to increase Ground Clearance
The multi-functional computer even makes provisional for trackside optical telemetry
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The 2006 RS125 will be available in either classic black with red accents or pearl white as per Manuel Poggiali's works Grand Prix machine, with black and red highlights.

Aprilia RS125 specifications
Race kit
A non-street legal race kit will be available, including:
Expansion chamber racing exhaust
Racing exhaust valve (power valve) with special control unit and solenoid
Replacement carburettor needle, main jet and atomiser.
Racing spark plug