Honda NSR 250R MC18 (1988)

The Honda NSR 250R MC18 motorcycle was produced in 1988 and features a two-stroke V-twin cylinder engine with a capacity of 249cc. It has a liquid cooling system and compression ratio of 6.2:1. The bike has a maximum power of 45 horsepower at 9500 rpm and maximum torque of 35 Nm at 8500 rpm. The transmission is a constant mesh 6-speed with a wet plate clutch and chain final drive. The frame is made of aluminum tube and the front suspension is telescopic air valve semi-adjustable. The rear suspension is a single shock swingarm. The front brakes are dual discs with 2 piston calipers and the rear brake is a single disc with 1 piston caliper. It has a 23 degree rake and a trail of 87 mm. The bike measures 2035 mm in length, 705 mm in width, and 1105 mm in height, with a wheelbase of 1360 mm and a dry weight of 125 kg. The fuel capacity is 16 litres, and it has a seat height of 750 mm and ground clearance of 135 mm. Road tests conducted by Bike Magazine in 1987 found the bike to be a good performer. Further information is available on nsr250.net.

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Technical specifications:

Make Model: Honda NSR 250R MC18

Year: 1988

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: 6.2: 1

Lubrication: Injected 2-stroke oil

Exhaust: Expansion chamber, RC power valves

Induction: TA10A Carburetor Type

Ignition: CDI

Starting: Kick

Max Power: 45 hp / 32.8 kW @ 9500 rpm

Max Torque: 35 Nm / 25.8 ft-lb @ 8500 rpm

Clutch: Wet plate

Transmission: Constant Mesh 6-speed

Final Drive: Chain

Gear Ratio: 1st: 2.846 / 2nd: 1.941 / 3rd: 1.500 / 4th: 1.272 / 5th: 1.136 / 6th: 1.045

Frame: Aluminum tube type frame

Front Suspension: 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: 100/80-17 52 H

Rear Tyre: 130/70-18 63 H

Rake: 23 degrees

Trail: 87 mm / 3.4 in

Dimensions: Length 2035 mm / 80.1 in Width 705 mm / 27.7 in Height 1105 mm / 43.5 in

Wheelbase: 1360 mm / 53.5 in

Seat Height: 750 mm / 29.5 in

Ground Clearance: 135 mm / 5.3 in

Dry Weight: 125 kg / 275.5 lbs

Wet Weight: 141 kg / 310.8 lbs

Fuel Capacity: 16 Litres / 4.2 US gal

Road Test: Bike magazine Group test 1987

Related Links: Type I / Type II / Technical / nsr250.net