Aprilia RS 125 R (2007-08)

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The Aprilia RS 125 R motorcycle was produced from 2007 to 2008. It features a single cylinder, two stroke engine with a capacity of 124.8cc and reed valve induction. The engine has a compression ratio of 12.5:1 and is liquid cooled with separate mixing and a volumetric pump. The bike uses a Dell’Orto PHBH 28 carburetor and has CDI electronic ignition. The bike has a maximum power of 21 kW or 28 hp at 10,500 rpm, and maximum torque of 19 Nm or 14.1 lb-ft at 9,000 rpm. It has a six-speed transmission with a wet mult-disc clutch and chain final drive. The frame is made of cast aluminium and has a reinforced box section with a sloping twin-spar frame. The front suspension features upside-down forks with 40mm of travel, and the front wheel has 120mm of travel.

Technical specifications:

Make Model: Aprilia RS 125 R

Year: 2007 – 08


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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