KTM 250 SX (2022) Review: A Two-Stroke Motocross Weapon Reimagined

Introduction

The 2022 KTM 250 SX isn’t just a dirt bike—it’s a statement. In an era where four-strokes dominate the motocross scene, KTM’s commitment to refining its two-stroke lineup feels like a rebellious love letter to purists. This machine doesn’t just keep the two-stroke dream alive; it elevates it with modern engineering, aggressive styling, and a level of adjustability that makes it a terrifyingly good choice for riders who crave raw power paired with precision. After spending days thrashing this orange beast through motocross tracks and technical trails, here’s why the 2022 KTM 250 SX deserves your attention (and why you’ll want to keep MOTOPARTS.store bookmarked for upgrades).

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Engine Performance: Two-Stroke Fury, Refined

The Heart of the Beast

At the core of the 2022 KTM 250 SX lies a 249 cc (15.19 cubic inches) liquid-cooled single-cylinder two-stroke engine. Unlike the fuel-injected engines creeping into modern MX bikes, this one sticks to a Mikuni TMX 38 mm carburetor—a setup that rewards tuners and purists who enjoy dialing in their fuel-air mix for specific conditions.

From the moment you kick-start the engine (yes, it’s kick-only, adding to its old-school charm), the exhaust note screams urgency. The powerband hits hard but predictably, with a violent surge of torque that launches you out of corners. Compared to four-strokes, there’s no waiting for RPMs to climb—just instant, unapologetic thrust.

Transmission and Clutch

The 5-speed gearbox pairs perfectly with the engine’s character. Shifts are crisp, and the Brembo hydraulic clutch offers a light pull while handling the engine’s brutal power delivery. During our test ride, the clutch never faded, even after hours of abusive starts and hard landings. For tight tracks, second and third gears felt most responsive, while fifth gear stretched legs on longer straights.

Carburetion vs. Modern Expectations

While fuel injection would’ve smoothed low-end delivery, the Mikuni carburetor delivers a nostalgic, hands-on experience. Jet changes are inevitable for altitude or weather shifts, but once dialed in, the engine sings. Riders coming from four-strokes might miss EFI’s convenience, but two-stroke devotees will appreciate the tactile connection.

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Chassis and Handling: Agile Meets Stable

Frame Geometry

The 25CrMo4 steel double-cradle frame strikes a balance between flex and rigidity. At 1,495 mm (58.9 inches), the wheelbase feels nimble in ruts yet stable at speed. KTM’s engineers shaved every possible gram, resulting in a dry weight of 95.5 kg (210.5 lbs)—lighter than most 250F four-strokes. Flicking the bike mid-air or pivoting through tight berms requires minimal effort.

Suspension Setup

• Front: The WP XACT 48 mm USD fork offers 310 mm (12.2 inches) of travel. Adjusting compression and rebound took minutes, and the fork absorbed everything from sharp square-edge hits to heavy G-outs without bottoming.
• Rear: The WP XACT monoshock (300 mm/11.8 inches of travel) works seamlessly with the linkage system. It stays planted on hard landings but remains supple over smaller bumps.

Brakes and Wheels

Brembo’s single-disc brakes (220 mm front and rear) provide strong, progressive stopping power. Paired with Dunlop Geomax MX3S tires (80/100-21 front, 110/90-19 rear), the bike grips loamy soil and hardpack with equal confidence. The CNC-machined hubs and Excel rims survived our test rides without a single spoke loosening—a testament to their durability.

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Ergonomics and Design: Built for Attack

Rider Triangle

The 850 mm (33.5-inch) seat height suits taller riders but remains manageable for shorter pilots thanks to narrow bodywork. The handlebars and footpegs create an aggressive, forward-leaning stance that encourages attacking jumps and corners. Even after hours of riding, the grippy seat cover and slim fuel tank (7.5 liters/1.98 gallons) made it easy to shift weight without fighting the bike.

Aesthetic Brutality

KTM’s signature orange/white/blue livery looks fast standing still. Every component—from the minimalist headlightless front fender to the sculpted rear fender—serves a purpose. The lack of unnecessary bodywork keeps weight down and simplifies post-ride cleanup.

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Competition: How It Stacks Up

Yamaha YZ250

The YZ250 is the 250 SX’s oldest rival. While Yamaha’s air-cooled engine is bulletproof, it feels dated next to KTM’s liquid-cooled powerplant. The YZ’s suspension (KYB SSS) is plush but heavier, and its steel frame lacks the KTM’s adjustability. However, Yamaha loyalists praise its lower maintenance costs.

Husqvarna TC250

Sharing DNA with the KTM, Husqvarna’s TC250 offers a similar engine but with a ProTaper handlebar and Magura hydraulic clutch. The Husky’s composite subframe saves weight but is less durable in crashes. Riders split hairs here—it’s largely a matter of brand preference.

GasGas MC 250

GasGas’s 2022 MC 250 is essentially a red KTM 250 SX with minor suspension tweaks. It’s a budget-friendly alternative but lacks the premium components (e.g., Brembo brakes) that make the KTM stand out.

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Maintenance: Keeping the Beast Alive

Two-Stroke Simplicity

The 250 SX’s engine is refreshingly simple to maintain compared to four-strokes. Key tasks include:
- Top-End Rebuilds: Every 30-50 hours, depending on riding style. Stock pistons are durable, but aftermarket options (like Vertex) offer longer life.
- Carburetor Tuning: Clean the Mikuni TMX jetting regularly. MOTOPARTS.store stocks jet kits for altitude adjustments.
- Air Filter Care: Oil and replace foam filters frequently—critical with the bike’s high airflow demands.

Critical Fluids

• Coolant: Use high-quality “WASSER+” (water-based) coolant to prevent overheating.
• Brake Fluid: DOT 4/5.1 fluids ensure consistent Brembo performance.
• Transmission Oil: Change every 15 hours with 10W-50 synthetic.

Upgrade Recommendations

• Exhaust: Swap the stock silencer for an FMF Fatty system to boost mid-range punch.
• Sprockets: A 520 chain conversion kit reduces rotational mass.
• Suspension Tuning: WP offers optional spring kits for heavier riders.

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Conclusion: Why It Still Matters

The 2022 KTM 250 SX isn’t just a relic of the two-stroke era—it’s proof that the formula still works. It’s lighter, faster, and more adjustable than most modern four-strokes, and it rewards skilled riders with unmatched agility. While it demands mechanical sympathy and regular upkeep, the payoff is a motocross experience that’s pure, unfiltered adrenaline.

Whether you’re rebuilding the top end or upgrading the clutch, MOTOPARTS.store has the OEM and aftermarket parts to keep your 250 SX dominating the track. Because this bike isn’t meant to be parked—it’s meant to be ridden hard, maintained harder, and loved for its glorious, oil-burning imperfections.

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Specifikacijų lentelė

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