AJS Tempest: history, specs, pictures

The AJS Tempest Roadster 125 was a single cylinder, four-stroke standard produced by AJS in 2018. It could reach a top speed of 60 mph (96 km/h). Max torque was 7.01 ft/lbs (9.5 Nm) @ 6500 RPM. Claimed horsepower was 9.79 HP (7.3 KW) @ 8500 RPM.

AJS Tempest
Also called Tempest Scrambler 125, Tempest Roadster 125
Production 2018
single cylinder, four-stroke
Bore / Stroke 44.0mm x 40.0mm
Top Speed 60 mph (96 km/h)
Horsepower 9.79 HP (7.3 KW) @ 8500RPM
Torque 7.01 ft/lbs (9.5 Nm) @ 6500RPM
Fuel System injection
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: wet, multiplate
Suspension Front: telescopic fork
Rear: dual shocks
Brakes Front: double disc
Rear: single disc
Front Tire 110/70-17
Rear Tire 130/70-17
Wheelbase 52.36 inches (1330 mm)
Length 80.31 inches (2040 mm)
Width 31.5 inches (800 mm)
Height 43.7 inches (1110 mm)
Seat Height 30.71 inches (780 mm)
Weight 273.37 pounds (124.0 Kg) (dry),
Fuel Capacity 4.23 Gallon (16.00 Liters)
Manuals Service Manual


The engine was a air cooled single cylinder, four-stroke. A 44.0mm bore x 40.0mm stroke result in a displacement of just 124.0 cubic centimeters. Fuel was supplied via a overhead cams (ohc).


The bike has a 5-speed transmission. Power was moderated via the wet, multiplate.


It came with a 110/70-17 front tire and a 130/70-17 rear tire. Stopping was achieved via double disc in the front and a single disc in the rear. The front suspension was a telescopic fork while the rear was equipped with a dual shocks. The Tempest Roadster 125 was fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The bike weighed just 273.37 pounds (124.0 Kg). The wheelbase was 52.36 inches (1330 mm) long.