Aprilia Pegaso 650 [2000-2005]: A Dual-Sport Contender Revisited

Introduction

The Aprilia Pegaso 650 remains one of the most intriguing entries in the mid-2000s dual-sport segment—a motorcycle that blurred the lines between urban agility and off-road capability. Designed as a "lifestyle" enduro, the Pegaso 650 generation (2000-2005) catered to riders seeking versatility without the bulk of heavyweight adventure bikes. With its liquid-cooled Rotax-derived engine and Italian styling, this machine carved out a niche that still feels relevant today. Let’s dive into what makes this generation a compelling choice for riders who value adaptability and character.

Riding Experience: The Heart of the Pegaso

Engine Performance

At the core of the Pegaso 650 beats a 652cc single-cylinder engine with a five-valve DOHC configuration—a rarity in its class. The powerplant delivers 47–50 HP (35–37 kW) at 6,500–7,000 RPM and a robust 58–59 Nm (43–44 lb-ft) of torque, peaking around 4,500–6,500 RPM. While vibrations are inherent to big singles, Aprilia’s balancer shaft does a commendable job isolating the rider from excessive buzz.

On asphalt, the Pegaso feels eager up to 120 km/h (75 mph), but pushing beyond reveals its single-cylinder limitations. The engine thrives in the 3,500–6,000 RPM range, making it ideal for twisty backroads and city commuting. Fuel injection (on later models) ensures crisp throttle response, though earlier carbureted versions require patience in cold starts.

Off-road, the Pegaso’s 249 mm (9.8 in) ground clearance and 175 mm (6.9 in) front suspension travel handle moderate trails confidently. However, the low-slung pegs and street-biased tires (100/90-19 front, 130/80-17 rear) limit aggressive dirt riding.

Handling & Ergonomics

The Pegaso’s aluminum twin-spar frame and 1480 mm (58.3 in) wheelbase strike a balance between stability and flickability. Marzocchi’s 45 mm inverted forks (non-adjustable) and Sachs’ preload/rebound-adjustable rear monoshock provide a plush ride on uneven pavement, though hardcore off-roaders might crave more damping control.

At 810–845 mm (31.9–33.3 in) seat height, the Pegaso accommodates shorter riders while still offering ample legroom for taller pilots. The upright riding position and narrow waist make lane-splitting a breeze, but the thinly padded seat becomes punishing after 2+ hours.

Instrumentation & Fuel Efficiency

Aprilia’s dashboard stands out in the segment: an analog tachometer pairs with a digital display showing coolant temperature, fuel level, and trip data. The 21–25L (5.5–6.6 gal) fuel tank delivers a 300–400 km (186–248 mi) range, with consumption averaging 5.6 L/100 km (41.6 US mpg).

Design & Build Quality

The Pegaso’s styling leans into its Italian heritage with sharp lines, a minimalist fairing, and vibrant color schemes like Lime Yellow and Flamingo Red. The steel-aluminum hybrid frame and underslung exhaust keep the center of gravity low, aiding maneuverability.

Practical touches include:
- Lockable storage under the seat (fits a U-lock or small toolkit)
- Optional hard luggage mounts for touring
- Dual-headlight setup with decent illumination

However, some components show cost-cutting: plastic switchgear feels flimsy, and the chain guard collects mud on wet rides.

Competition: How the Pegaso Stacks Up

The Pegaso 650 faced stiff rivals in the 650cc dual-sport arena:

| Model | Key Advantages | Pegaso’s Edge |
|--------------------|-----------------------------------------|----------------------------------------|
| BMW F650 | Superior dealer network, ABS option | Lighter weight, sharper handling |
| Suzuki DR650 | Bulletproof reliability, lower price | Modern liquid cooling, better road manners |
| Honda XR650L | Legendary off-road prowess | Fuel injection (post-2003), comfort |
| Kawasaki KLR650| Long-distance touring DNA | Higher power output, Italian flair |

The Pegaso’s liquid-cooled engine gave it a technological edge over air-cooled rivals, while its sub-175 kg (385 lb) wet weight made it nimbler than the BMW F650. However, it lacked the aftermarket support of Japanese competitors—a gap that MOTOPARTS.store now fills with tailored upgrades.

Maintenance: Keeping the Pegaso Thriving

Owning a Pegaso 650 requires attention to these key areas:

1. Engine Oil & Filter

• Specification: SAE 5W-40 synthetic
• Capacity: 2.2L (2.3 qt) with filter
• Interval: Every 6,000 km (3,700 mi)

MOTOPARTS.store Recommendation: Aprilia-Spec Synthetic Oil Kit with OEM filter.

2. Valve Adjustments

• Intake clearance: 0.10–0.15 mm (0.004–0.006 in)
• Exhaust clearance: 0.15–0.20 mm (0.006–0.008 in)
• Interval: Every 12,000 km (7,500 mi)

Use a feeler gauge and replace the valve cover gasket during service.

3. Brake System

• Front: 300mm disc + 2-piston Brembo caliper
• Rear: 220–240mm disc + 1-piston caliper
• Fluid: DOT 4 (replace every 2 years)

Upgrade Tip: Swap to sintered brake pads for improved bite.

4. Chain & Sprockets

• Stock setup: 16T front / 47T rear, 111-link chain
• Adjustment: 25–35 mm (1–1.4 in) free play

For off-road use, consider a heavy-duty O-ring chain.

5. Suspension Refresh

• Fork oil: 570ml per leg of SAE 5W-20
• Rear shock: Check Sachs monoshock for leaks

Conclusion: A Jack of All Trades, Master of Fun

The Aprilia Pegaso 650 wasn’t perfect—its seat could double as a medieval torture device, and the lack of suspension adjustability frustrated perfectionists. Yet, its blend of Italian charisma, approachable power, and surprising practicality makes it a standout in today’s used market.

For riders prioritizing aftermarket customization, MOTOPARTS.store offers solutions to the Pegaso’s weak spots:
- Gel seat covers for marathon rides
- Rally-style footpegs for better off-road grip
- LED lighting kits for improved visibility

Whether you’re threading through city traffic or exploring fire roads, the Pegaso 650 remains a testament to Aprilia’s knack for building motorcycles with soul. Two decades later, it’s still asking: “Why choose one road when you can ride them all?”

Specifications sheet