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.
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
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