Honda NSR 250R MC21 (1991)

The Honda NSR 250R MC21 is a motorcycle from 1991 with a two stroke 90 degree V-twin cylinder engine and a capacity of 249 c. It has a kick start, a multi-plate coil spring clutch, and a constant mesh 6-speed transmission with a final drive chain. The frame is made of aluminum tubes and the suspension consists of front telescopic air valve semi-adjustable forks and a rear Pro-Link single shock swingarm. The NSR 250R MC21 has two front disc brakes with two piston calipers and a single rear disc brake with a one piston caliper. The front and rear tires are 110/70-17 53 H and 150/60-R18 67 H respectively. The dimensions of the motorcycle include a length of 1975 mm, width of 655 mm, height of 1060 mm, and a wheelbase of 1345 mm. The dry weight of the motorcycle is 132 kg and the wet weight is 151 kg. The fuel capacity is 16 liters or 4.2 US gallons. There are several reviews available for the Honda NSR 250R MC21 including Type I, Type II, Technical, and nsr250.net.

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Technical specifications:

Make Model: Honda NSR 250R MC21

Year: 1991

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