Aprilia SXV 550 Supermoto (2006–2013): A V-Twin Beast That Redefined Supermoto

Introduction

The Aprilia SXV 550 isn’t just a motorcycle—it’s a declaration of war against convention. Born from Aprilia’s relentless racing DNA, this Italian supermoto shattered expectations with its audacious V-twin engine, track-ready geometry, and a personality that’s equal parts thrilling and demanding. Produced from 2006 to 2013, the SXV 550 remains a cult classic, revered by riders who crave raw power and razor-sharp handling. Let’s dive into what makes this machine unforgettable.

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Engine: The Heart of a Race Bike

At the core of the SXV 550 lies a 549 cc, 77° V-twin engine that feels more like a MotoGP prototype than a street-legal supermoto. With 70 hp (52 kW) on tap and a redline screaming past 12,500 RPM, this isn’t an engine—it’s a weapon.

Key Highlights:

• Titanium Valves & SOHC Design: The four titanium valves per cylinder (yes, four in a single-cam setup!) keep weight low and revs explosive.
• Race-Bred Fuel Injection: 40 mm throttle bodies deliver precise fueling, while dual power maps let you toggle between “controlled chaos” and “full insanity.”
• Dry Sump Lubrication: Separate oil reservoirs for the engine and gearbox prevent clutch debris from contaminating critical components—a must for high-revving reliability.

Riding Impressions: Twist the throttle, and the SXV transforms into a snarling animal. Power builds linearly until 8,000 RPM, then erupts in a frenzy of acceleration that pins you to the seat. The V-twin’s 77° angle cancels vibrations, leaving only a smooth, metallic howl from the exhaust. This isn’t torque-heavy like a thumper; it’s a precision instrument that rewards aggression.

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Chassis & Handling: Lightweight Agility Meets Stability

Weighing just 123 kg (271 lbs) wet, the SXV 550 feels like a bicycle with a jet engine. The steel trellis frame paired with forged aluminum sideplates creates a rigid yet flickable chassis, while the 48 mm USD fork and Sachs monoshock offer adjustable damping for everything from parking lot wheelies to knee-down cornering.

Geometry That Works:
- Wheelbase: 1,495 mm (58.9")
- Rake: 27°
- Seat Height: 918 mm (36.1")

On the Road: Flicking the SXV through tight corners is intuitive, thanks to its narrow profile and aggressive steering geometry. The 120/70-17 front and 180/55-17 rear tires (Dunlop D208s in earlier models) provide enough grip for street hooliganism, though serious track riders might swap for stickier rubber. Braking is handled by a radial-mount 320 mm front disc with a four-piston caliper—adequate for the weight, but expect to upgrade pads for hardcore use.

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Ergonomics: Built for Action, Not Comfort

The SXV’s 918 mm (36.1") seat is a thinly padded perch designed for mobility, not cross-country touring. Standing up on the pegs feels natural, with MX-style handlebars placing your weight forward for aggressive riding. That said, the tank’s smooth contours can let you slide into the gas cap under hard braking—a quirk that’ll have you squeezing the knees tighter.

Fuel Capacity Alert: At just 7.8 liters (2.06 gallons), range anxiety is real. Plan routes around gas stations or invest in a auxiliary tank from MOTOPARTS.store for longer rides.

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Competition: How the SXV Stacks Up

The SXV 550 existed in a niche of its own, but here’s how it fared against rivals:

1. KTM 690 SMC

• Pros: Larger 690cc single-cylinder, more low-end torque, better fuel range.
• Cons: Heavier (149 kg), less peak power (63 hp), and less exotic than Aprilia’s V-twin.
• Verdict: The KTM is the practical choice; the SXV is the adrenaline choice.

2. Husqvarna SM610

• Pros: Bulletproof single-cylinder reliability, lower maintenance.
• Cons: Antiquated carburetion, 50 hp deficit, and softer suspension.
• Verdict: A commuter-friendly supermoto vs. Aprilia’s track weapon.

3. Yamaha WR450F Supermoto

• Pros: Lighter (112 kg), cheaper to maintain.
• Cons: Requires frequent oil changes, less power (50 hp), and no street-legal refinement.
• Verdict: The WR450F is a converted dirt bike; the SXV is a factory-built predator.

Aprilia’s Edge: The SXV’s V-twin delivers a unique blend of high-RPM power and chassis balance that singles can’t match. But be prepared for its quirks: tighter maintenance intervals and a thirst for premium parts.

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Maintenance: Keeping the Beast Alive

Ownership demands diligence. Here’s what to prioritize:

1. Oil Changes

• Engine Oil: Use SAE 10W-60 (1.3L without filter). The dry sump system’s external tank needs frequent checks.
• Gearbox Oil: SAE 75W-90 ensures smooth shifts. Replace every 1,500 km (930 miles).

2. Valve Adjustments

• Intake: 0.07–0.12 mm (0.0027–0.0047")
• Exhaust: 0.17–0.22 mm (0.0067–0.0087")
  Check every 3,000 km (1,860 miles)—titanium valves are durable but demand precision.

3. Cooling System

• Coolant Capacity: 1.1L. Flush annually with ethylene glycol-based fluid to prevent overheating.

4. Tire Pressures

• Front: 1.8 bar (26 psi)
• Rear: 2.0 bar (29 psi)

Pro Tip: Upgrade to a high-flow air filter (available at MOTOPARTS.store) to unlock hidden power and simplify cleaning.

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Conclusion: A Machine for the Devoted

The Aprilia SXV 550 isn’t for everyone. It’s a high-strung, maintenance-intensive beast that rewards skilled riders and punishes the careless. But for those willing to embrace its demands, it offers an unmatched supermoto experience—a blend of Italian passion and racetrack engineering that still turns heads today.

Whether you’re chasing knee drags on backroads or hunting for upgrades, MOTOPARTS.store has the oils, filters, and performance parts to keep your SXV 550 alive and snarling.

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Specifications sheet

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