AJS TN 12 125

The AJS TN 12 125 was a air-cooled, four-stroke, single cylinder, OHV Naked motorcycle produced by AJS in 2015. Claimed horsepower was 10.06 HP (7.5 KW) @ 8500 RPM.

AJS TN 12 125
Production 2015
Class Naked
air-cooled, four-stroke, single cylinder, OHV
Horsepower 10.06 HP (7.5 KW) @ 8500RPM
Transmission Gear box: 5-speed, manual

Final Drive: chain

Clutch: wet multi-disc, manual
Suspension Front: telescopic fork
Rear: monoshock
Brakes Front: single disc
Rear: single disc
Front Tire 110/70-17
Rear Tire 150/60-17
Wheelbase 52.8 inches (1341 mm)
Length 79.49 inches (2019 mm)
Width 28.7 inches (729 mm)
Seat Height 32.28 inches (820 mm)
Weight 134.0 kg (wet)
Manuals Service Manual


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


It came with a 110/70-17 front tire and a 150/60-17 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a telescopic fork while the rear was equiped with a monoshock. The wheelbase was 52.8 inches (1341 mm) long.

2015 AJS TN 12 125Edit


The 2015 MY AJS TN 12 125 addresses the younger and less-experienced among riders, who want sportbike performance but also a more comfortable, up-right riding position. It sports an air-cooled, four-stroke, 124cc, single cylinder powerhouse paired to a five-speed manual transmission, and can produce a claimed 10 horsepower at 8500 rpm.

It also boasts standard features such as blacked-out, aluminum alloy wheels, which reduce its unsprung weight, LED running lights and tail lights, an up-right riding position, for more comfort, a digital instrument cluster, front and rear disc brakes, blacked-out engine accents and a suspension package composed of a telescopic front fork and a rear monoshock suspension.