The Honda NSR 250SP Rothmans Replica MC21 is a motorcycle produced in 1992 with a two-stroke, 90-degree V-twin cylinder engine, and a capacity of 249cc. It has a liquid-cooled cooling system, 6-speed transmission with a multi-plate coil spring clutch and a chain final drive. The motorcycle has a maximum power of 45 horsepower and a maximum torque of 35 Nm at 8500 RPM. The frame of the bike is an aluminum tube-type, and it has semi-adjustable front suspension with 41mm telescopic air valves, and a rear suspension with pro-link single shock swingarm. The front brakes of the motorcycle are 2x discs with 2 piston calipers, while the rear brake is a single disc with 1 piston caliper. The bike has a ground clearance of 135mm, a seat height of 770mm and a fuel capacity of 16 litres. Overall, it has a dry weight of 132kg and a wet weight of 151kg. The Honda NSR 250SP Rothmans Replica MC21 was road tested by Motosprint in 1991 and related links and technical information can be found on nsr250.net.
Technical specifications:
Make Model: Honda NSR 250SP Rothmans ReplicaMC21
| Year | 1992 |
|---|---|
| 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 1975 mm / 77.7 in Width 655 mm / 25.7 in Height 1060 mm / 41.7 in |
| Wheelbase | 1345 mm / 52.9 in |
| Seat Height | 770 mm / 30.3 in |
| Ground Clearance | 135 mm / 5.3 in |
| Dry Weight | 132 kg / 291.8 lbs |
| Wet Weight | 151 kg / 337 lbs |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Related Links | Type I / Type II / Technical / nsr250.net |
| Road Test | Motosprint 1991 |
