At the heart of the 2005 Aprilia Atlantic 125 scooter motorcycle, Aprilia utilizes a 124 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 14.8 HP (10.8 kW) at 9,500 rpm while maximum torque reaches 12 Nm (8.9 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. With a specific output of 119.4 HP per liter and a 1,500 rpm working window between peak torque (8,000 rpm) and peak power (9,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
Rider ergonomics and chassis geometry center around a 678 mm (26.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 770 mm (30.3 in) wheelbase engineered for quick, flickable steering geometry.
Within MotoLibrary's Aprilia archive, this model family spans 4 indexed model years from 2005 to 2008, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
119.4 HP/L
Power Band Window
8,000–9,500 rpm
Standover Height
678 mm (26.7 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power14.8 HP (10.8 kW)) @ 9500 RPM
Torque12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 8000 RPM
Compression12.5:1
Bore x Stroke57.0 x 48.6 mm (2.2 x 1.9 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionElectronic CDI with automatic advance
LubricationWet sump. Forced lubrication with mechanical oil pump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveChain (final drive)
ClutchAutomatic centrifugal dry clutch
Chassis
Frame TypeHigh-tensile double-cradle tubular lattice with high flexional and torsional rigidity
Front Suspension35 mm hydraulic fork.
Front Travel105 mm (4.1 inches)
Rear SuspensionEngine assembly acting as swingarm. Double chamber hydraulic shock absorber with 5 positions for spring preload. Wheel travel 110 mm.
Wheelbase770 mm (30.3 inches)
Ground Clearance250 mm (9.8 inches)
Wheels & Brakes
Front Tyre110/90-13
Rear Tyre130/70-13
Front BrakesSingle disc
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Seat Height678 mm (26.7 inches) If adjustable, lowest setting.
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
