The Honda NSR 250R MC18-II is a two-stroke motorcycle with a 249cc V-twin cylinder engine that has a compression ratio of 7.3:1. It uses a TA20 carburetor type and a separate pump for lubrication. The maximum power output is 45 horsepower at 9500 rpm, while the maximum torque is 35 Nm at 8500 rpm. It has a multi-plate clutch and a constant mesh 6-speed transmission with a chain final drive. The frame is made of aluminum tube and it has a front suspension of 41mm telescopic air valve semi-adjustable and a rear suspension of Pro-Link single shock swingarm non-adjustable. The front brakes are two discs with two piston calipers and the rear brake is a single disc with a one piston caliper. It has a rake of 23 degrees 15 and a trail of 87 mm. The dry weight is 131 kg and the wet weight is 149 kg. It has a fuel capacity of 16 liters and a ground clearance of 135 mm.
Technical specifications:
Make Model: Honda NSR 250R MC18-II
| Year | 1989 |
|---|---|
| Engine | Two stroke, 90 degreesV-twin cylinder, reed valve/exhaust valve |
| Capacity | 249 c / 15.2 cu-in |
| Bore x Stroke | 54 x 54.5 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 7.3: 1 |
| Induction | TA20 Carburetor Type |
| Lubrication | Seperate Pump (engine) splash type (transmission) |
| Ignition | PGM-CDI |
| Starting | Kick |
| Max Power | 45 hp / 32.8 kW @ 9500 rpm |
| Max Torque | 35 Nm / 25.8 ft-lb @ 8500 rpm |
| Clutch | Multi-plate, coil spring |
| Transmission | Constant Mesh 6-speed |
| Final Drive | Chain |
| Gear Ratio | 1st: 2.642 / 2nd: 1.800 / 3rd: 1.380 / 4th: 1.125 / 5th: 1.000 / 6th: 0.916 |
| Frame | Aluminum tube type frame |
| Front Suspension | 41mm Telescopic air valve semi-adjustable |
| Rear Suspension | Rear: Pro-Link Single shock swingarm non-adjustable |
| Front Brakes | 2x discs 2 piston calipers |
| Rear Brakes | Single disc 1 piston caliper |
| Front Tyre | 110/70-17 53 H |
| Rear Tyre | 150/60-R18 67 H |
| Rake | 23 degrees15 |
| Trail | 87 mm / 3.4 in |
| Dimensions | Length 1980 mm / 77.9 in Width 650 mm / 25.5 in Height 1060 mm / 41.7 in |
| Wheelbase | 1345 mm / 52.9 in |
| Seat Height | 790 mm / 31.1 in |
| Ground Clearance | 135 mm / 5.3 in |
| Dry Weight | 131 kg / 288.8 lbs |
| Wet Weight | 149 kg / 328.4 lbs |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Related Links | Type I / Type II / Technical / nsr250.net |
