Honda NX 650 Dominator (1991)

The Honda NX 650 Dominator is a four-stroke, single cylinder, SOHC motorcycle with a capacity of 644 cc / 39.2 cu-in. Its engine has a compression ratio of 8.3:1 and is cooled by air. The bike has a maximum power of 45 hp / 33.5 kW @ 6000 rpm and maximum torque of 53 Nm / 5.7 kgf-m @ 5000 rpm. The transmission is a 5-speed with chain final drive. The frame is made of steel and has a single cradle frame. The front suspension has a 41mm leading-axle fork and the rear suspension is a Pro-Link. The front and rear brakes are single disc with 2 piston calipers and 1 piston caliper respectively. The bike has a fuel capacity of 16 Litres / 4.2 US gal and has an average consumption of 17.8 km/lit. The dry weight is 163 kg / 359.3 lbs and the wet weight is 178 kg / 392.4 lbs. The top speed is 160.8 km/h / 100 mph and it can go from 0-60 in 13.8 meters. It has a 62-degree fork angle and a ground clearance of 250 mm / 9.8 in. Road tests performed by the Motosprint Group show that the bike can complete a standing 1/4 mile in 13.9 sec / 147.8 km/h. The bike has a seat height of 870 mm / 24.2 in and a wheelbase of 1435 mm / 56.4 in. Overall, the Honda NX 650 Dominator is a powerful and reliable motorcycle.

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Technical specifications:

Make Model: Honda NX 650 Dominator

Year: 1991

Engine: Four-stroke, single cylinder, SOHC, 4 valve per cylinder

Capacity: 644 cc / 39.2 cu-in

Bore x Stroke: 100 x 82 mm

Cooling System: Air cooled

Compression Ratio: 8.3:1

Induction: Single 40mm Keihin VE-type carb

Ignition: Digital CDI

Starting: Electric

Spark Plug: NGK, DPR 8EA-9

Engine Oil: Semi-Synthetic, 10W/40

Max Power: 45 hp / 33.5 kW @ 6000 rpm

Max Torque: 53 Nm / 5.7 kgf-m @ 5000 rpm

Clutch: Wet, multiple discs, cable operated

Transmission: 5 Speed

Final Drive: Chain

Frame: Steel, Single cradle frame

Front Suspension: 41mm leading-axle fork

Front Wheel Travel: 220 mm / 8.6 in

Rear Suspension: Pro-Link,

Rear Wheel Travel: 195 mm / 7.6 in

Front Brakes: Single 256mm disc 2 piston caliper

Rear Brakes: Single 220mm disc 1 piston caliper

Front Tyre: 90/90 21

Rear Tyre: 120/90 17

Fork Angle: 62 degrees

Trail: 115 mm / 4.5 in

Wheelbase: 1435 mm / 56.4 in

Seat Height: 870 mm / 24.2 in

Ground Clearance: 250 mm / 9.8 in

Dry Weight: 163 kg / 359.3 lbs

Wet Weight: 178 kg / 392.4 lbs

Fuel Capacity: 16 Litres / 4.2 US gal

Consumption Average: 17.8 km/lit

Braking 60 – 0 / 100 – 0: 13.8 m / 40.4 m

Standing 1/4 Mile: 13.9 sec / 147.8 km/h

Top Speed: 160.8 km/h / 100 mph

Road Test: Motosprint Group Test 1990