ATK NX250: history, specs, pictures

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Also called NX 250
Production 1987
single cylinder, four-stroke
Fuel System carburetor. keihin 24mm
Ignition cdi
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: wet plate
Suspension Front: wp usd
Rear: wp multi adjuster shock
Brakes Front: single disc. 2-piston calipers
Rear: expanding brake (drum brake)
Front Tire 80/100-21
Rear Tire 100/100-18
Wheelbase 57.99 inches (1473 mm)
Length 57.99 inches (1473 mm)
Width 32.28 inches (820 mm)
Weight 282.19 pounds (128.0 Kg) (dry),
Oil Capacity 0.48 Gallon (1.80 Liters)
Fuel Capacity 2.3 Gallon (8.70 Liters)
Manuals Service Manual

The ATK NX250 was a single cylinder, four-stroke standard produced by ATK in 1987.

Engine[edit | edit source]

The engine was a liquid cooled single cylinder, four-stroke. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive[edit | edit source]

The bike has a 6-speed transmission. Power was moderated via the wet plate.

Chassis[edit | edit source]

It came with a 80/100-21 front tire and a 100/100-18 rear tire. Stopping was achieved via single disc. 2-piston calipers in the front and a expanding brake (drum brake) in the rear. The front suspension was a wp usd while the rear was equipped with a wp multi adjuster shock. The NX250 was fitted with a 2.3 Gallon (8.70 Liters) fuel tank. The bike weighed just 282.19 pounds (128.0 Kg). The wheelbase was 57.99 inches (1473 mm) long.