| MODEL | HONDA NSR 250R 1992 - 1993 |
| Year | 1992 - 1993 |
| Engine Type | Two stroke, 90° V-twin, reed valve, exhaust valve |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 54 x 54.5 mm |
| Compression Ratio | 7.3:1 |
| Cooling System | Liquid cooled |
| Max Power | 32.8 kW / 45 hp @ 9500 rpm |
| Max Torque | 35 Nm / 25.8 lb-ft @ 8500 rpm |
| Ignition | PGM-CDI |
| Induction | TA20 carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Separate pump (engine), splash (transmission) |
| Gear Box | 6-speed, constant mesh |
| Clutch | Wet multi-plate, coil spring |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Aluminium tube type |
| Front Suspension | 41 mm telescopic fork, air valve, semi-adjustable |
| Rear Suspension | Pro-Link single shock, gull-arm swingarm, non-adjustable |
| Front Brakes | 2x discs, 2-piston calipers |
| Rear Brakes | Single disc, 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 1975 mm / 77.7 in |
| Overall Width | 655 mm / 25.7 in |
| Overall Height | 1060 mm / 41.7 in |
| Seat Height | 770 mm / 30.3 in |
| Wheelbase | 1345 mm / 52.9 in |
| Ground Clearance | 135 mm / 5.3 in |
| Dry Weight | 132 kg / 291.8 lbs |
| Wet Weight | 151 kg / 333 lbs |
| WHEEL SPECS | |
| Front Tyre | 110/70-17 53H |
| Rear Tyre | 150/60R18 67H |
| FUEL SYSTEM | |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The late MC21 NSR250R went on sale in January 1992 with new colours and no major mechanical changes. For 1993 only the SP's colours changed, and MC21 production ended in August 1993 ahead of the MC28 with its single-sided Pro-Arm swingarm.
