Engineered by AJS for the scooter motorcycle segment, the 2015 AJS Modena 125 utilizes a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 7.1 HP (5.2 kW) at 7,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 57.3 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Modena 125 measures 95 kg (209 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (13.38 kg per horsepower). Rider ergonomics and chassis geometry center around a 735 mm (28.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,320 mm (52 in) wheelbase engineered for quick, flickable steering geometry. The 6.7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 82 km/h (51 mph).
Within MotoLibrary's AJS archive, this model family spans 4 indexed model years from 2014 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
57.3 HP/L
Power-to-Weight
0.07 HP/kg (13.38 kg/HP)
Standover Height
735 mm (28.9 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power7.1 HP (5.2 kW)) @ 7500 RPM
Bore x Stroke52.4 x 57.8 mm (2.1 x 2.3 inches)
Fuel SystemCarburettor
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchCoil CDI
DrivelineAutomatic Twist and Go
Performance
Top Speed82.1 km/h (51.0 mph)
Chassis
Frame TypeSteel
Front SuspensionTelescopic fork
Rear SuspensionSwing arm
Wheelbase1320 mm (52.0 inches)
Wheels & Brakes
Front Tyre3.50-10
Rear Tyre3.50-10
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight95.0 kg (209.4 pounds)
Power/Weight0.0748 HP/kg
Seat Height735 mm (28.9 inches) If adjustable, lowest setting.
Fuel Capacity6.70 litres (1.77 US gallons)
Other
StarterElectric & kick
Color OptionsWhite, blue, green, red
Electrical12V 7Ah battery.
Carrying CapacityLockable storage space under the seat. Luggage rack pre-drilled to accept a top box.
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.
