The Aprilia RS 125R Extrema is a 125 cc, single cylinder, two stroke motorcycle with a liquid cooling system and reed valves induction. Its engine has a bore of 54mm and a compression ratio of 14.5:1. The bike has an electronic ignition system, 6 speed transmission, and a chain final drive. It produces a max power of 24.8 kW at 11000 rpm and max torque of 25 Nm at 9000 rpm. The suspension consists of upside-down forks and a monoshock, which provide 120 mm of travel for both front and rear wheels. The braking system includes single discs for the front and rear wheels, with 4 and 2 piston calipers respectively. The bike has a front tyre size of 110/70-17 and a rear tyre size of 150/60-17. It weighs 115 kg and is capable of reaching a top speed of around 120 km/h.
Technical specifications:
Make Model: Aprilia RS 125R Extrema
| Year | 1994 – 95 |
|---|---|
| Engine | Single cylinder, two stroke, reed valves induction |
| Capacity | 125 cc / 7.6 cu in |
| Bore x Stroke | 54 x 54.5mm |
| Compression Ratio | 14.5:1 |
| Cooling System | Liquid cooled |
| Induction | Dell’Orto VHSB 34LD |
| Ignition | Electronic |
| Starting | Electric |
| Max Power | 24.8 kW / 34 hp @ 11000 rpm |
| Max Torque | 25 Nm / 2.5 kgf-m / 18.4 lb-ft @ 9000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | Upside-down forks, 40mm |
| Front Wheel Travel | 120 mm / 4.7 in |
| Rear Suspension | Monoshock |
| Rear Wheel Travel | 120 mm / 4.7 in |
| Front Brakes | Single 320 mm discs, 4 piston caliper |
| Rear Brakes | Single 240 mm disc, 2 piston caliper |
| Front Tyre | 110/70-17 |
| Rear Tyre | 150/60-17 |
| Dry Weight | 115 kg / 254 lbs |
