Built around Aprilia's scooter motorcycle platform, the 2005 Aprilia Leonardo 300 features a 264.5 cc (16.1 cu in) liquid-cooled single cylinder, four-stroke configuration. Internal engine geometry specifies a bore and stroke of 71.0 x 66.8 mm (2.8 x 2.6 inches) with a 10.0:1 compression ratio.
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 1,340 mm (52.8 in) wheelbase engineered for quick, flickable steering geometry. The 9.3-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Aprilia archive, this model family spans 2 indexed model years from 2005 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
678 mm (26.7 in)
Engine
Displacement264.5 ccm (16.14 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression10.0:1
Bore x Stroke71.0 x 66.8 mm (2.8 x 2.6 inches)
Valves/Cylinder2
Fuel SystemCarburettor. Mikuni BS 26
Fuel ControlOverhead Cams (OHC)
IgnitionElectronic
LubricationWet sump. Forced circulation with orbital pump
CoolingLiquid
Transmission
Final DriveChain (final drive)
ClutchAutomatic centrifugal dry clutch
Performance
ExhaustCatalysed with secondary air system. Conforms to Euro 2 standards.
Chassis
Frame TypeHigh tensile tubular steel. Single spar at front, upper double cradle at rear.
Front Suspension35 mm hydraulic fork with forward mounted wheel.
Front Travel90 mm (3.5 inches)
Rear SuspensionEngine unit acting as swinging arm.
Rear Travel104 mm (4.1 inches)
Wheelbase1340 mm (52.8 inches)
Ground Clearance250 mm (9.8 inches)
Wheels & Brakes
Front Tyre130/70-12
Rear Tyre130/70-12
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
