Aprilia RS 125 R Nero (2006)

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The Aprilia RS 125 Nero is a motorcycle model from 2006 that has a single cylinder, two-stroke engine with reed valve induction and a capacity of 124.8 cc. It has a compression ratio of 12.5:1 and is liquid-cooled with separate mixing and a Dell’Orto PHBH 28 carburetor. The ignition is CDI electronic and it has an electric starter as well as a 12V, 180W alternator. The bike can reach a max power of 21 kW or 28 hp at 10500 rpm and a max torque of 19 Nm at 9000 rpm. It has a wet, multi-disc clutch and a 6-speed transmission with a chain final drive. The gear ratios are 1st 10:30, 2nd 14:29, 3rd 17:27, 4th 19:25, 5th 21:24, and 6th 22:23. The primary drive is 63:19 and the final drive is 17:40. The frame is a cast aluminum, reinforced box section, sloping twin-spar frame with upside-down forks measuring 40mm and front wheel travel of 120mm or 4.7 inches.

Technical specifications:

Make Model: Aprilia RS 125 Nero

Year: 2006


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, 40mm
Front Wheel Travel: 120 mm / 4.7 in

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