KTM 690 SMC (2007–2011): The Supermoto That Redefined Urban Hooliganism

When KTM unleashed the 690 SMC between 2007 and 2011, it wasn’t just launching another motorcycle—it was dropping a grenade into the supermoto segment. This generation of the 690 SMC remains a cult favorite, blending race-bred agility with street-smart practicality. As a rider who’s thrown a leg over countless machines, I can confidently say: Few bikes deliver grins per mile like this orange menace. Let’s dissect why this Austrian thumper still resonates with riders today.

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The Heart of the Beast: LC4 Engine & Performance

At the core of the 690 SMC lies KTM’s legendary LC4 engine—a 654cc single-cylinder powerplant that’s equal parts brute and sophisticate. With 63 HP (47 kW) at 7,500 RPM and 65 Nm (47.9 lb-ft) of torque peaking around 6,500 RPM, this isn’t your grandpa’s thumper.

Key Highlights:

• Fuel Injection & Balance Shaft: Later models (2008 onward) adopted Keihin EMS fuel injection, a game-changer for throttle response. Combined with a counterbalancer, vibrations are tamed—no more numb hands after a spirited ride.
• APTC Slipper Clutch: The hydraulically operated anti-hopping clutch is butter-smooth, whether you’re downshifting mid-corner or crawling through traffic.
• Exhaust Note: The twin stainless-steel silencers (on earlier models) or single Euro-III-compliant muffler serve up a raspy, infectious bark. It’s loud enough to announce your arrival but never obnoxious.

Riding Impressions: Crack the throttle, and the LC4 pulls like a freight train from 3,000 RPM. There’s a surge at 5,000 RPM that’ll have you giggling into your helmet. The 6-speed gearbox is crisp, though you’ll rarely need sixth unless you’re highway cruising—a rarity on a bike that begs for backroad mischief.

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Chassis & Handling: A Trellis of Joy

KTM’s chromium-molybdenum trellis frame is a masterpiece. Weighing just 139.5 kg (307.5 lbs) dry, the 690 SMC flicks into corners with telepathic ease.

Suspension & Geometry:

• WP USD Forks: The 48mm inverted forks offer 210–275 mm of travel (varies by year), tuned for aggressive street riding. They soak up potholes but stay composed during hard braking.
• WP Monoshock: Linked via a Pro-Lever system, the rear shock provides 210–265 mm of travel. Preload and rebound adjustments let you dial in stability for wheelies or knee-down antics.
• Rake & Trail: With a 27° rake and 112 mm trail, the steering is quick but never twitchy. It’s Goldilocks-level perfect for urban slaloms.

Riding Impressions: Throw it into a hairpin, and the Bridgestone Battlax tires (120/70-17 front, 160/60-17 rear) dig in with confidence. The 900 mm (35.4") seat height might intimidate shorter riders, but the narrow tank lets you plant a foot firmly. On twisty roads, it’s a scalpel—precise, playful, and perpetually egging you to push harder.

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Brakes: Brembo’s Bite

Brembo’s hardware ensures you stop as hard as you accelerate: - Front: A radially mounted 4-piston caliper clamps a 320mm disc. Initial bite is fierce but progressive—ideal for trail-braking into corners. - Rear: The single-piston 240mm setup offers ample modulation for slides or tight U-turns.

Riding Impressions: These brakes don’t just halt momentum; they reset it. On canyon runs, I found myself braking later and harder, trusting the Brembos to scrub speed without fade. Swap pads to sintered compounds (available at MOTOPARTS.store) for track-day aggression.

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Ergonomics: Supermoto Meets Street

The 690 SMC’s riding position is pure supermoto: upright bars, moto-inspired pegs, and a slim, flat seat. It’s a love letter to urban riders: - Seat Height: Ranges from 875–900 mm (34.4–35.4"), depending on the year. Tall riders appreciate the legroom; shorter ones might opt for a lowered seat. - Tank Design: The plastic tank/rear fender combo keeps weight centralized. At 12–13.5 liters (3.1–3.5 gal), range is ~200 km (124 mi)—enough for a day of hooning. - Vibration: While improved over earlier LC4 engines, there’s still a pleasant thrum at highway speeds. Invest in bar-end weights if touring.

Riding Impressions: Commuting feels like an adventure. Filtering through traffic? Easy. Parking lot wheelies? Effortless. The seat’s firmness is a downside on longer rides—consider an aftermarket gel seat from our store.

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Competition: How the 690 SMC Stacks Up

The 690 SMC faced fierce rivals, yet it dominated with a mix of power and poise:

1. Husqvarna SM610 (2007–2010):
2. Pros: Lighter (144 kg / 317 lbs), cheaper.
3. Cons: Carbureted, less power (54 HP), dated suspension.

4. Verdict: A fun alternative but lacks the KTM’s refinement.

5. BMW G 650 Xmoto (2007–2009):

6. Pros: Comfortable seat, shaft drive reliability.
7. Cons: Heavier (166 kg / 366 lbs), sluggish 52 HP engine.

8. Verdict: Better for touring, worse for adrenaline.

9. Aprilia Pegaso 650 Factory (2006–2012):

10. Pros: Styling, lower seat height.
11. Cons: Soft suspension, 48 HP underwhelms.
12. Verdict: A commuter in supermoto clothing.

Why the KTM Wins: The 690 SMC’s power-to-weight ratio (0.45 HP/kg) and premium components (WP, Brembo) make it the apex predator. It’s the only bike in its class that’s equally at home on track days and Starbucks runs.

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Maintenance: Keeping the Beast Alive

Owning a 690 SMC isn’t just about riding—it’s about bonding. Here’s how to keep it thriving:

Critical Service Items:

• Valve Adjustments: Every 10,000 km (6,200 mi). Intake/Exhaust clearances: 0.07–0.13 mm (cold). Use feeler gauges—no shims needed!
• Oil Changes: 1.7L of SAE 10W-60 (JASO MA) every 5,000 km (3,100 mi). Don’t skip the filter—it’s a lifeline for the LC4.
• Chain Care: The 5/8" x 1/4" X-ring chain lasts longer with regular cleaning and MOTOPARTS.store’s premium chain lube.
• Brake Fluid: Flush with DOT 5.1 annually. Spongy levers? Upgrade to steel-braided lines.

Pro Tips:

• Tire Pressure: 2.0 bar (29 psi) front, 2.2 bar (32 psi) rear for aggressive riding.
• Coolant: Use silicate-free fluid to prevent corrosion in the 1.2L system.
• Spark Plug: NGK LKAR8AI-9 (0.9 mm gap). Swap every 12,000 km (7,500 mi).

Parts Recommendations: - High-flow air filters for better throttle response. - Aftermarket exhausts (slip-ons available here) to unleash the LC4’s growl. - Upgraded clutch plates if you’re a wheelie addict.

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Conclusion: The Supermoto Legacy Lives On

The KTM 690 SMC (2007–2011) isn’t just a motorcycle—it’s a lifestyle. It’s the bike you ride to work, then detour through the twisties because… why not? With its razor-sharp handling, addictive engine, and bulletproof build, it’s no wonder these machines still command loyal followings.

Whether you’re chasing knee-down glory or just want a bike that turns sidewalks into playgrounds, the 690 SMC delivers. And when it’s time to upgrade or maintain your orange beast, MOTOPARTS.store has the gear to keep the legend alive. Now go forth and scrape those pegs.

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Specifications sheet

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