Positioned in Aprilia's scooter motorcycle lineup, the 2005 Aprilia Atlantic 250 relies on a 250 cc (15.3 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 22.8 HP (16.6 kW) at 8,000 rpm while maximum torque reaches 20.2 Nm (14.9 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 91.2 HP per liter and a 1,500 rpm working window between peak torque (6,500 rpm) and peak power (8,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Atlantic 250 measures 175 kg (386 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.68 kg per horsepower). 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 1,470 mm (57.9 in) wheelbase engineered for balanced agility and highway composure. The 10.5-liter (2.8 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
91.2 HP/L
Power-to-Weight
0.13 HP/kg (7.68 kg/HP)
Power Band Window
6,500–8,000 rpm
Standover Height
678 mm (26.7 in)
Engine
Displacement250.0 ccm (15.26 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power22.8 HP (16.6 kW)) @ 8000 RPM
Torque20.2 Nm (2.1 kgf-m or 14.9 ft.lbs) @ 6500 RPM
Compression12.5:1
Bore x Stroke71.9 x 59.9 mm (2.8 x 2.4 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 DriveBelt (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.
Rear Travel110 mm (4.3 inches)
Wheelbase1470 mm (57.9 inches)
Ground Clearance190 mm (7.5 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
Dry Weight163.0 kg (359.4 pounds)
Weight incl.175.0 kg (385.8 pounds)
Power/Weight0.1398 HP/kg
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.
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.
