The Honda NSR 250R MC21 was a two-stroke motorcycle built in 1992-93. It had a 249cc V-twin engine with a 90-degree angle and reed valve/exhaust valve. The bike was liquid-cooled and had a compression ratio of 7.3:1. The TA20 carburetor type and separate pump lubrication made this bike stand out from others. Additionally, it had an aluminum tube frame, 41mm semi-adjustable front suspension, and Pro-Link single shock swingarm non-adjustable rear suspension. The bike had 2x discs, 2 piston calipers for front brakes and a single disc, 1 piston caliper for rear brakes, and a constant mesh 6-speed transmission with a chain final drive. The NSR 250R MC21 had a dry weight of 132 kg / 291.8 lbs and a wet weight of 151 kg / 337 lbs. The fuel capacity of the bike was 16 liters / 4.2 US gal. The bike had a max power of 45 hp / 32.8 kW @ 9500 rpm, and a max torque of 35 Nm / 25.8 ft-lbs @ 8500 rpm. The wheelbase was 1345 mm / 52.9 in, seat height 770 mm / 30.3 in, and ground clearance 135 mm / 5.3 in. The Honda NSR 250R MC21 was widely reviewed, with different types of reviews available, including type I, type II, technical, and nsr250.net. Overall it was a lightweight, high-performance motorcycle with advanced suspension and braking systems.
Technical specifications:
Make Model: Honda NSR 250R MC21
| Year | 1992 – 93 |
|---|---|
| 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 |
| Review | Type I / Type II / Technical / nsr250.net |
