AJS Firefox 50

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The AJS Firefox 50 was a air-cooled, two-stroke, single cylinder scooter produced by AJS between 2012 and 2015. It could reach a top speed of 30 mph (49 km/h). Claimed horsepower was 2.95 HP (2.2 KW) @ 8000 RPM.

AJS Firefox 50
2015 AJS Firefox 50
Manufacturer AJS
Production 2012 - 2015
Class Scooter
Engine air-cooled, two-stroke, single cylinder
Bore / Stroke 39.0mm x 41.5mm
Top speed 30 mph (49 km/h)
Horse Power 2.95 HP (2.2 KW) @ 8000RPM
Ignition type battery 12v 6ah
Transmission Gear box: CVT

Final Drive: belt

Clutch: ignition coil cdi
Suspension Front: telescopic fork
Rear: monoshock
Brakes Front: single disc
Rear: drum
Front Tire 120/70-12
Rear Tire 130/70-12
Wheelbase 52.01 inches (1321 mm)
Dimensions L 73.58 inches (1869 mm)
W 27.6 inches (701 mm)
Seat height 32.52 inches (826 mm)
Weight 187.39 pounds (85.0 Kg) (dry), 85.0 kg (wet)
Fuel capacity 1.24 Gallon (4.70 Liters)
Manuals Service Manual
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The engine was a air cooled air-cooled, two-stroke, single cylinder. A 39.0mm bore x 41.5mm stroke result in a displacement of just 49.0 cubic centimeters.


The bike has a CVT transmission. Power was moderated via the ignition coil cdi.


It came with a 120/70-12 front tire and a 130/70-12 rear tire. Stopping was achieved via single disc in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equiped with a monoshock. The Firefox 50 was fitted with a 1.24 Gallon (4.70 Liters) fuel tank. The bike weighed just 187.39 pounds (85.0 Kg). The wheelbase was 52.01 inches (1321 mm) long.

2015 AJS Firefox 50[edit]

2015 AJS Firefox 50

The 2015 MY AJS Firefox 50 is an entry-level scooter that is perfectly suited for a daily commute in the concrete jungle, no matter the rider age or experience level. It comes standard with a low seat height, a lockable under-seat storage compartment, a rear luggage rack pre-drilled for a trunk, blacked-out, aluminum alloy wheels, a dual seat and a digital instrument cluster.

In the tech/engine department, it sports a air-cooled, two-stroke, 49cc, single cylinder powerplant paired to a continuously variable transmission, and can produce a claimed 3 horsepower at 8000 rpm.