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Honda NSR 250R

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Make Model

Honda NSR 250R MC16

Year

1986

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

The NSR 250 debuted on October 1st, 1986 as a 1987 model in Japan for 559,000 Japanese Yen, dubbed the MC16 by the factory. It replaced the older NS 250 R that was getting out dated. Honda was winning big time with it's NSR racers so Honda released a replica version for the street. It was almost a complete replica of the factory racers. It was light weight and quick. The engine was basically a NSR 500 racer engine cut in half. The first year NSR 250's were the only 250 NSR's to have three spoke wheels. Available colors were fighting red and white at first until the release of the Terra colors in blue and white that went on sale in March of 1987. It was an amazing machine in it's day with nimble handling and awesome acceleration

 Taken directly from the NSR500 and 250 works machines, the air intake is tilted forward at 20 degrees with a valve reed intake system. Carburetors are a 28mm flat sided style. The RC Valve exhaust system is continuously varied by a computer controlled timing system. The cylinders are hard coated with a nickle silicon carbide particles over the aluminum walls that provides extreme cooling capabilities at high RPM high performance output. The cassette type transmission provides great power in a compact lightweight design, while providing improved maintenance at the race track. The frame is a large cast aluminum front section, with extruded cross members main tube. The adjustable aluminum extruded swing arm is used to achive high rigidity