The Yamaha TZR 250R is a 1992 motorcycle with a two-stroke, 249.7cc V-Twin engine that has a compression ratio of 7.5:1 and is cooled by liquid. The bike has a maximum power of 45 hp and max torque of 3.8 kgf-m at 8000 RPM. It is equipped with a 6-speed transmission and chain final drive. The front and rear suspension are monocross linkage and upside-down forks, respectively, and it has front and rear brakes that are 2X disc 4 piston calipers and a single disc 2 piston caliper, respectively. The bike weighs 126 kg, has a fuel capacity of 15 litres and can reach a top speed of 180.2 km/h. Road tests in 1991 revealed its capabilities.
Technical specifications:
Make Model: Yamaha TZR 250R
| Year | 1992 |
|---|---|
| Engine | Two stroke, 90 degrees V-Twin cylinder, read valve induction |
| Capacity | 249.7 cc / 15.2 cu-in |
| Bore x Stroke | 56 x 50.7 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 7.5:1 |
| Induction | 2x Mikuni flatside carburetor |
| Ignition | Microcomputer controlled |
| Starting | Kick |
| Max Power | 45 hp / 33.6 kW @ 9500 rpm |
| Max Torque | 3.8 kgf-m / 40 Nm @ 8000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | 39mm Upside-down forks |
| Rear Suspension | Monocross linkage |
| Front Brakes | 2X disc 4 piston calipers |
| Rear Brakes | Single disc 2 piston caliper |
| Front Tyre | 110/70 Z17 |
| Rear Tyre | 150/60 Z17 |
| Dimensions | Length 1960 mm / 77.1in Width 680 mm / 26.7 in Height 1075 mm / 42.3 in |
| Wheelbase | 1340 mm / 52.8 in |
| Seat Height | 780 mm / 30.7 in |
| Dry Weight | 126 kg / 277.8 lbs |
| Fuel Capacity | 15 Litres / 4.0 gal |
| Top Speed | 180.2 km/h / 112 mph |
| Road Test | Motosprint 1991 Performance Bike 1991 |
