1997 Honda NSR 150R

Make Model	Honda NSR 150R
Year	1997 -
Engine	Two stroke, single cylinder
Capacity	149 mm /
Bore x Stroke	59 x 54.5 mm
Cooling System	Liquid cooled
Compression Ratio	6.5:1 (RR) 6.8:1 (RR-W)
Induction	28mm Keihin
Ignition	Electronic CDI
Spark Plug	NKG B9ECS
Starting
Max Power	39.5 hp @ 10,500 rpm
Max Torque	2.74 kg-m @ 9000 rpm
Clutch	Wet Multi Plate with Coil Springs
Transmission	6 Speed
Final Drive	Chain
Front Suspension	Telescopic oil filled damper
Rear Suspension	Pro-Link® (RR/RR-W) or Pro-Arm® (SP)
Front Brakes	Single 298mm disc 2 piston caliper
Rear Brakes	Single 220mm disc 2 piston caliper
Front Tyre	90/80-17
Rear Tyre	120/80-17 or 130/80-17
Rake	25°
Trail	91mm
Dimensions	Length 1970 mm Width 685 mm Height 1060 mm
Wheelbase	1355 mm
Seat Height	685 mm
Ground Clearance	142 kg
Dry Weight	122.4 kg
Fuel Capacity	10.5 Litres

The NSR150 was introduced as an Asian model only in 1997. This model (KW6) like all the NSR150s before it was built by Asia Pacific Honda in Thailand. The bike was actually styled in Italy and the engines built in Japan. With Pro Arm suspension, RC valves, Nika-Sil coated cylinders, tacho, big bike looks and Repsol paint, it was to be the flagship of the Honda range at a time when Honda sales in Thailand alone were approaching 800,000 bikes a year!

The Honda NSR150 was a motorcycle produced in Thailand and Malaysia by Honda and Taiwan as Honda NSR by Kymco and also manufactured under the name Kymco NSR. The early Taiwanese NSR150 was produced with engines from Japan, but was later cast in Taiwan by Kymco which in the beginning was of less pure quality than the Japanese ones.

The Taiwanese NSR150 had lower power than the ones made in Thailand because the carburetor was smaller and the ports in the cylinder had slightly different size. It is common to switch to a Thailand made cylinder in NSR racing in Taiwan. Due to a significant amount of warranty claims the CDI was programmed to open and then close the RC valve because running cheap 2 stroke oil reduced the power of the engine further.

The Taiwan made NSRs made about 20 hp while the Thailand ones produced about 30 hp.

The Taiwanese and Thai NSR150's are quite closely related sharing the same stroke and appearance.

Kymco's spare parts supply for Taiwan NSR's are slowly declining with slowed production and competition from easily available aftermarket parts.

YSS aftermarket rear suspension has been available for Taiwan NSR's since year 2000.

An interesting fact is that Kymco's 2010 Quannon Naked's 37MM front fork assembly can be nearly directly transplanted on Taiwan made NSR's with the help of a small CNC-ed washer, directly addressing the problem with "head float" under hard acceleration and stability at higher speeds.

An NSR 150SP currently holds the Bonneville SCTA Land Speed Record for Production 175cc motorcycles at 104.4 mph.[citation needed]