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Honda NSR 250R

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Make Model

Honda NSR 250R MC21

Year

1992 - 93

Engine

Two stroke, 90°V-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°15’
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

The 1992 NSR there were no major changes but there were all new colors. The standard R type was still priced at 620,000 Yen and the new colors were Ross white and real blue with orange accents and the green markings on the seat cowl that was becoming famous with NSR's. The SE was still part of the 1992 lineup and this time two different colors were available in fighting red and Ross white with blue accents and the green marked seat cowl.

The other colors for the SE were in black and fighting red with silver accents and of course the green marked seat cowl. SE NSR's were marked differently than standard NSR's and were unchanged in price from the previous year SE models of 660,000 Yen. Honda brought back the Rothmans colored NSR SP models for 1992 with all the extras as the previous year SP.

 These second generation Rothmans colored NSR's were limited to a production run of 1,500 units and were priced at 770,000 Yen. These SP bikes hold there value very well due to the limited number of SP bikes built by Honda.  In 1993 there were no changes for the MC21 NSR's except for the SP model which was no longer available in Rothmans colors. Instead it was offered in the same colors as the 1992 SE colors. Known as the flash colors in Japanese.

 The only difference was of course the stickers on the rear seat that marked it an SP version, the HRC mark under the front turn signals and the green trim from the rear seat cowl was carried over to the front of the upper cowl covering the area where the number plate cover was on race bikes to give the bike a more racier image. These were the last SP bikes made for the MC21 type NSR's and were limited to a very small run of only 900 bikes making them the rarest NSR's of all. Honda made a total of 106,000 NSR's from the very first MC16 1987 model NSR's to the final MC21 NSR produced in 1993. MC21 Production stopped at the end of August 1993

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