Aprilia Pegaso I.e. 650 - 2003 Specifications and Reviews

The 2003 Aprilia Pegaso I.E. 650 is a versatile single-cylinder enduro designed for adventure riders seeking lightweight handling and fuel efficiency. Its 651cc four-stroke engine delivers manageable power for both on-road and off-road exploration, while the 22-liter fuel tank enables extended range touring. Best known for approachable performance and nimble agility, it suits intermediate riders prioritizing practicality and exploration over raw power.

2003
4 stars Average rating: 4 from 1 votes
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General information

CategoryEnduro / offroad
Year2003
ModelAprilia Pegaso I.E. 650

Engine and Transmission Specifications

Engine typeSingle cylinder, four-stroke
Capacity:651.80 ccm (39.77 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Reserve fuel capacity5.00 litres (1.32 gallons)
Fuel capacity22.00 litres (5.81 gallons)
Wheelbase1,480 mm (58.3 inches)
Seat height845 mm (33.3 inches) If adjustable, lowest setting.
Dry weight161.0 kg (354.9 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsRed/Silver, Gray/Black, Lime/Black

Performance Profile & Rider Fit

47 hp
Peak Power
6.5s
0-60 mph

Best For

Track15%
City60%
Cornering55%
Daily Riding58%
Touring45%
Passenger35%

Rider Profile

Best ForSuits riders from intermediate level upward, as the tall seat height and single-cylinder power delivery reward some prior experience.
PurposeA versatile single-cylinder enduro-styled machine best suited to mixed on-road commuting with occasional light off-road or gravel excursions.
Rider FitThe 817 mm seat height and upright stance demand reasonably long legs and good balance, though the lightweight feel of a big single makes it manageable for most body types.
CharacterA characterful, torquey big-single with an off-road-biased chassis that feels nimble, simple, and engaging rather than outright fast.
Not Ideal ForNot for riders seeking high-speed performance, plush two-up touring comfort, or track-day thrills.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2003 Aprilia Pegaso I.e. 650 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 845mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2003 Aprilia Pegaso I.e. 650, with a cramped knee angle of around 75 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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