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Honda NSR 250SP

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Make Model

 Honda NSR 250SP MC21

Year

 1991 - 92

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
Related Links Type I  /  Type II / Technical / nsr250.net
Road Test Motosprint 1991

. In 1991 Honda released a new model of the NSR. It was called the SE and now there were three types of models for sale. The standard model was plainly called the 250R model. It was available in only black with grey and silver accents. The R type was priced at 620,000 Yen and did not include the extra options as the SE and SP models. It was a lower cost alternative to the more expensive models and some people didn't care for the noisy chatter of the dry clutch. This was the first year for the SE ( Super Edition ) model. It was available in only one color of fighting red/white with blue and green distinguishing it from the regular R type model. The SE was priced higher at 660,000 Yen. The SE was made available because of the high price and scarceness of the SP

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Any corrections or more information on these motorcycles will be kindly appreciated.
 
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