The Honda NSR 125F-II was produced in 1991 and featured a two-stroke, single-cylinder engine with a displacement of 124.8 cc. It had a bore and stroke of 54 x 54 mm and was cooled by liquid. The engine had a compression ratio of 12.0:1 and was fed by a Dell’Orto PHBH 28 FS carburetor. The ignition was capacitor discharge electronic and it had both an electric and kick-start. The bike delivered a maximum power of 31 hp at 10,500 rpm and a maximum torque of 20.85 Nm at 9,000 rpm. A 6-speed transmission and a chain final drive were included. The frame was a double-cradle tubular steel construction and it used Marzocchi telescopic forks on the front and Marzocchi shock with Pro-Kink adjustable preload on the rear. Braking was provided by a single 316mm disc with a 2-piston caliper at the front and a single 220mm disc with a 1-piston caliper on the rear. The front and rear wheels had 100/80-17 and 130/70-18 tires, respectively. The bike had a seat height of 800 mm and a dry weight of 132 kg. The fuel tank had a capacity of 10 litres and it gave an average fuel consumption of 18.0 km per litre. The bike delivered a top speed of 160.0 km/h and was tested in the Motosprint 1990.
Technical specifications:
Make Model: Honda NSR 125F-II
| Year | 1991 |
|---|---|
| Engine | Two stroke, single cylinder, Reed valve induction |
| Capacity | 124.8 cc / 7.6 cu-in |
| Bore x Stroke | 54 x 54 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 12.0:1 |
| Induction | Dell’Orto PHBH 28 FS carburetor |
| Ignition | Capacitor discharge electronic ignition |
| Starting | Electric & Kick |
| Max Power | 31 hp / 23.1 kW @ 10500 rpm |
| Max Torque | 20.85 Nm / 15.1 lb-ft / 2.1 kgf-m @ 9000 rpm |
| Clutch | Multi-disc oil bath |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Frame | Double cradle tubular steel panels |
| Front Suspension | 35mm Marzocchi telescopic forks |
| Rear Suspension | Marzocchi shock with Pro-kink adjustable preload |
| Front Brakes | Single 316mm disc 2 piston caliper |
| Rear Brakes | Single 220mm disc 1 piston caliper |
| Front Tyre | 100/80 -17 |
| Rear Tyre | 130/70 -18 |
| Seat Height | 800 mm / 31.4 in |
| Dry Weight | 132 kg / 291 lbs |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Consumption Average | 18.0 km/lit |
| Braking 60 – 0 / 100 – 0 | 13.4 m / 38.6 m |
| Standing 1/4 Mile | 15.4 sec / 136.3 km/h |
| Top Speed | 160.0 km/h / 100 mph |
| Road Test | Motosprint 1990 |
