Engineered by Aprilia for the scooter motorcycle segment, the 2008 Aprilia Atlantic 125 relies on a 124 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 20.1 HP (14.7 kW) at 9,600 rpm while maximum torque reaches 12 Nm (8.9 lb-ft) at 8,000 rpm, transferring power to the rear wheel through belt final drive. With a specific output of 162.1 HP per liter and a 1,600 rpm working window between peak torque (8,000 rpm) and peak power (9,600 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the Atlantic 125 measures 199 kg (439 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (9.9 kg per horsepower). Rider ergonomics and chassis geometry center around a 770 mm (30.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,470 mm (57.9 in) wheelbase engineered for balanced agility and highway composure. The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
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
162.1 HP/L
Power-to-Weight
0.1 HP/kg (9.9 kg/HP)
Power Band Window
8,000–9,600 rpm
Standover Height
770 mm (30.3 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power20.1 HP (14.7 kW)) @ 9600 RPM
Torque12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 8000 RPM
Compression12.5:1
Valves/Cylinder4
Fuel SystemCarburettor
Fuel ControlOverhead Cams (OHC)
IgnitionElectronic CDI with automatic advance.
LubricationWet sump. Forced lubrication with mechanical oil pump.
CoolingLiquid
Transmission
Final DriveBelt (final drive)
ClutchAutomatic centrifugal dry clutch
Chassis
Frame TypeHigh strength steel with closed double cradle.
Front Suspension35 mm hydraulic fork.
Front Travel90 mm (3.5 inches)
Rear SuspensionEngine assembly acting as swingarm. Double chamber hydraulic shock absorber with 5 positions for spring preload. Wheel travel 100 mm.
Rear Travel100 mm (3.9 inches)
Wheelbase1470 mm (57.9 inches)
Wheels & Brakes
Front Tyre110/90-13
Rear Tyre130/70-13
Front BrakesSingle disc
Front Brake Ø240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight199.0 kg (438.7 pounds)
Power/Weight0.1011 HP/kg
Seat Height770 mm (30.3 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.
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.
