Honda NSR 250R

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