Built around AJS's naked motorcycle platform, the 2016 AJS TN25 250 utilizes a 223 cc (13.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 16.1 HP (11.7 kW) at 8,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 72.2 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the TN25 250 measures 134 kg (295 lbs) dry, translating to a power-to-weight ratio of 0.12 HP/kg (8.32 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,340 mm (52.8 in) wheelbase engineered for quick, flickable steering geometry. The 12.5-liter (3.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
72.2 HP/L
Power-to-Weight
0.12 HP/kg (8.32 kg/HP)
Standover Height
820 mm (32.3 in)
Engine
Displacement223.0 ccm (13.61 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsBalance shaft
Power16.1 HP (11.7 kW)) @ 8000 RPM
Fuel SystemCarburettor
Fuel ControlOverhead Cams (OHC)
IgnitionCoil, CDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet. multi-plate
Performance
Emission DetailsEuro 3
Chassis
Front SuspensionTelescopic fork
Rear SuspensionTwin reservoir shocks
Wheelbase1340 mm (52.8 inches)
Wheels & Brakes
Front Tyre110/70-17
Rear Tyre150/60-17
Front BrakesDouble disc
Front Brake Ø295 mm (11.6 inches)
Rear BrakesSingle disc
Rear Brake Ø230 mm (9.1 inches)
WheelsAlloy wheels
Dimensions & Weight
Dry Weight134.0 kg (295.4 pounds)
Power/Weight0.1201 HP/kg
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
Overall Length2020 mm (79.5 inches)
Overall Width730 mm (28.7 inches)
Fuel Capacity12.50 litres (3.30 US gallons)
Other
StarterElectric
Color OptionsArctic White, Midnight Satin Black, Red, Blue
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
