The Aprilia RS 125 R (2009) is a single cylinder, two-stroke motorcycle with a capacity of 124.8cc. It has a bore x stroke of 54 x 54.5mm and a compression ratio of 12.5:1. The bike is liquid cooled and has separate mixing with a volumetric pump for lubrication. It also features a Dell’Orto PHBH 28 carburetor and CDI electronic ignition. The bike has a maximum power of 21 kW / 28 hp at 10500 rpm and a maximum torque of 19 Nm / 1.9 kgf-m / 14.1 lb-ft at 9000 rpm. The transmission is six-speed with a wet, multi-disc clutch and chain final drive. The frame is made of cast aluminum with a reinforced box section and a sloping twin-spar frame. The front suspension is upside-down forks, 40mm with 120 mm / 4.7 in front wheel travel.
Technical specifications:
Make Model: Aprilia RS 125 R
| 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, 40mm |
| Front Wheel Travel | 120 mm / 4.7 in |
