KTM 990 Super Duke (2007–2011): The Austrian Beast Reimagined

Introduction

The KTM 990 Super Duke (2007–2011) isn’t just a motorcycle—it’s a declaration of war on mediocrity. Dubbed the “hooligan’s choice,” this generation refined the raw aggression of its predecessor into a machine that blends precision with unapologetic brutality. With its 999cc LC8 V-twin engine, razor-sharp handling, and minimalist design, the Super Duke became the benchmark for naked bikes in the late 2000s. Riding one feels like wrestling a tornado: chaotic, exhilarating, and utterly addictive. Let’s dissect why this Austrian icon remains a legend among riders who crave adrenaline over comfort.

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Design & Ergonomics: Brutalism on Two Wheels

The 990 Super Duke’s design screams aggression. Angular bodywork, a chromium-molybdenum trellis frame, and twin under-seat exhausts give it a predatory stance. The exposed mechanical components—WP suspension, Brembo brakes, and that hulking V-twin—are a visual feast. KTM’s signature orange/black livery pops like a warning sign, while the 48mm USD forks and aluminum subframe hint at its track-ready DNA.

Ergonomically, the Super Duke is a study in purposeful discomfort. The seat height ranges from 850–855 mm (33.5–33.7 inches), which challenges shorter riders but offers commanding visibility. The wide, tapered handlebars provide leverage for aggressive steering, while the rearset pegs position you in a slight forward crouch. Wind protection? Nonexistent. At 130 km/h (80 mph), your torso becomes a sail—but that’s the price of purity in a naked bike.

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Engine & Performance: The LC8 V-Twin’s Savage Symphony

At the heart of the Super Duke lies the LC8 engine—a 999cc, 75-degree V-twin that churns out 120 hp (88 kW) at 9,000 RPM and 100 Nm (73.8 lb-ft) of torque at 7,000 RPM. This isn’t just an engine; it’s a mood swing on wheels.

Key Highlights:

• Throttle Response: Early models (pre-2007) were notorious for abrupt fueling, but the 2007–2011 generation smoothed out the edges. The ride-by-wire system (in later models) delivers linear power, though a slight surge around 5,000 RPM keeps you on your toes.
• Midrange Monster: Short-shifting at 4,000 RPM? The Super Duke obliges with tractor-like pull. Redline it to 10,700 RPM, and the front wheel levitates in protest.
• Soundtrack: The under-seat exhausts growl like a chainsaw chorus, especially with an aftermarket Akrapovič system.

Fuel efficiency averages 12.6 km/L (30 mpg), giving a range of ~230 km (143 miles) from its 18.5L (4.8-gallon) tank. Not ideal for touring, but adequate for backroad blitzes.

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Handling & Dynamics: A Scalpel in a Bar Fight

The Super Duke’s chassis is a masterclass in controlled violence. The trellis frame, paired with fully adjustable WP suspension, strikes a balance between rigidity and feedback.

• Steering: With a 24° rake and 103 mm (4.0") trail, the bike flicks into corners like a supermoto. The 1,438 mm (56.6") wheelbase ensures stability mid-corner.
• Suspension: The 48mm USD forks (135 mm travel) and WP monoshock (160 mm travel) are firm yet compliant. Dial in preload for track days or soften them for potholed commutes.
• Brakes: Dual 320mm discs gripped by Brembo radial 4-piston calipers offer nuclear stopping power. The rear 240mm disc is an afterthought—this bike stops on its nose.

Dunlop D208RR tires (120/70-17 front, 180/55-17 rear) provide grip that borders on telepathic. Push hard, and the Super Duke carves corners like a GP bike—just don’t expect comfort.

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Competition: How the Super Duke Stacks Up

The 2007–2011 naked bike arena was a gladiator pit. Here’s how the KTM fared:

| Model | Engine | Power | Weight | Key Traits |
|---------------------|---------------|--------|--------|------------------------------------------|
| KTM 990 Super Duke | 999cc V-twin | 120 hp | 186 kg | Raw, agile, track-ready |
| Ducati Streetfighter | 1099cc L-twin | 155 hp | 199 kg | Premium build, frenetic top-end |
| Aprilia Tuono V4R | 999cc V4 | 167 hp | 183 kg | Tech-heavy, smoother power delivery |
| Triumph Speed Triple| 1050cc inline-3 | 131 hp | 189 kg | Torquey, comfortable, less edgy |
| Yamaha FZ1 | 998cc inline-4 | 150 hp | 204 kg | Sport-tourer vibe, softer suspension |

Verdict: The Super Duke trades polish for passion. It’s lighter and more visceral than the Streetfighter, less refined than the Tuono, and wilder than the Speed Triple. For riders seeking a bare-knuckle brawl, the KTM reigns.

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Maintenance: Keeping the Beast Alive

Owning a Super Duke isn’t a hobby—it’s a commitment. Here’s what to prioritize:

1. Valve Adjustments:
2. Intake: 0.10–0.15 mm (0.004–0.006")

3. Exhaust: 0.25–0.30 mm (0.010–0.012")
   Check every 15,000 km (9,300 miles).

4. Oil & Fluids:

5. Engine Oil: SAE 10W-50 JASO MA (3.0L with filter).
6. Coolant: 2.1L of ethylene glycol mix.

7. Brake Fluid: DOT 4 or 5.1.

8. Chain Care:

9. X-Ring chain (5/8 x 5/16"). Adjust tension to 50–55 mm (2.0–2.2").

10. Tire Pressure:

11. Front: 2.4 bar (35 psi).

12. Rear: 2.4 bar (35 psi) solo / 2.6 bar (38 psi) with passenger.

13. Spark Plugs: NGK KR8DI, gapped to 0.8 mm (0.031").

Pro Tip: Upgrade to a high-flow air filter and stainless steel brake lines (available at MOTOPARTS.store) to sharpen responsiveness.

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Conclusion: The Unrepentant Thrill Machine

The 2007–2011 KTM 990 Super Duke isn’t for the faint-hearted—it’s for riders who equate motorcycling with controlled anarchy. Its V-twin snarls, its chassis dances, and its lack of wind protection reminds you that speed has consequences. Compared to today’s tech-laden nakeds, the Super Duke feels analog, demanding skill and respect.

Yet, that’s its charm. This bike doesn’t coddle; it challenges. And for those willing to master it, the rewards are endless: wheelies on demand, knee-down corners, and a grin that outlasts the ride.

At MOTOPARTS.store, we’ve got the oils, filters, and upgrades to keep your Super Duke biting. Because legends deserve to stay hungry.

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Specifications sheet

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