KTM 250 EXC Six Days [2012-2016]: A Legacy of Off-Road Dominance

Introduction

The KTM 250 EXC Six Days isn’t just a motorcycle—it’s a statement. Born from KTM’s relentless pursuit of off-road excellence, this model generation (2012–2016) represents a golden era for two-stroke enduro machines. Designed to honor KTM’s annual participation in the International Six Days Enduro (ISDE) competition, this bike is a race-ready weapon straight from the factory. Whether you’re slicing through dense forests, climbing rocky inclines, or navigating muddy ruts, the 250 EXC Six Days feels like an extension of the rider’s instincts. Let’s dissect why this machine remains a benchmark for hardcore enduro enthusiasts.

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Engine Performance: The Heartbeat of a Two-Stroke Beast

At the core of the 250 EXC Six Days lies a 249cc liquid-cooled two-stroke engine—a configuration that’s as thrilling as it is divisive. The moment you twist the throttle, the visceral scream of the single-cylinder powerplant delivers a nostalgic yet adrenaline-pumping rush. Unlike modern four-strokes, this engine thrives on urgency. The Keihin PWK 36 carburetor (a stalwart of simplicity) ensures crisp throttle response, though it demands patience for jetting adjustments in extreme climates.

With a 12.5:1 compression ratio and reed-valve-controlled intake, the powerband is aggressive but manageable. Riders get a satisfying hit of torque at 6,000 RPM that crescendos into a frenetic top-end rush. The six-speed gearbox is impeccably spaced, allowing you to crawl through technical sections in first gear or hit 100 km/h (62 mph) on open trails.

The dual starter system—electric and kick—is a godsend when you’re stalled mid-hill climb. While purists might argue against the added weight of the electric starter, its convenience in race scenarios is undeniable.

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Chassis and Handling: Precision Meets Agility

KTM’s chrome-molybdenum steel central-tube frame is the unsung hero here. Weighing just 101.9–104 kg (224.7–229.3 lbs) dry, the bike feels shockingly light when lofting the front wheel or pivoting through tight switchbacks. The 1,482 mm (58.3-inch) wheelbase strikes a perfect balance between stability at speed and flickability in technical terrain.

Ground clearance of 355 mm (14 inches) ensures that rocks and logs rarely make contact, while the low-slung fuel tank (9.5 liters / 2.51 gallons) keeps the center of gravity neutral. Even with a 960 mm (37.8-inch) seat height—intimidating for shorter riders—the narrow frame design lets you dab a foot confidently.

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Suspension Setup: WP’s Off-Road Mastery

KTM’s partnership with WP Suspension shines in this generation. The 2012–2014 models feature the WP Up Side Down 4860 MXMA PA forks (300 mm / 11.8 inches of travel), which offer plush initial stroke for small bumps and progressive damping for big hits. By 2016, the switch to WP 4CS closed-cartridge forks split opinions: some praised their adjustability, while diehards missed the MXMA’s raw feel.

Out back, the WP PDS (Progressive Damping System) shock absorber delivers 335 mm (13.2 inches) of travel. Without a linkage, the rear suspension relies on a rising-rate design that soaks up square-edged hits while maintaining composure during hard acceleration. Dialing in the sag (around 105–110 mm / 4.1–4.3 inches) is critical for optimizing traction.

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Braking System: Confidence in the Chaos

Single 220 mm discs front and rear might seem modest, but the Brembo hydraulics (introduced in 2016) provide exceptional lever feel. Earlier models use floating calipers that lack initial bite but excel in modulation—ideal for slippery descents. The rear brake’s progression lets you feather it through corners without fear of lockups.

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Ergonomics and Comfort: Built for Battle, Not for Lounging

The Six Days edition’s minimalist cockpit reflects its racing DNA. The handlebar bend is neutral, accommodating both seated climbs and standing attacks. The grippy seat foam is firm—expect numbness after three hours of riding—but it keeps you anchored during hard acceleration.

Fuel range is a limiting factor. At 9.5 liters (2.51 gallons), aggressive riding drains the tank in under 100 km (62 miles). Carrying a spare fuel bladder is wise for marathon events.

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Competition: How Does It Stack Up?

The 250 EXC Six Days faced fierce rivals during its production years:

1. Yamaha WR250F: A four-stroke counterpart with smoother power delivery but 10+ kg (22 lbs) heavier. The WR’s reliability is legendary, but it can’t match the KTM’s explosive acceleration.
2. Honda CRF250X: Another four-stroke with a broader torque curve. The Honda feels more subdued, catering to trail riders rather than racers.
3. Husqvarna TE250: A sibling rival (pre-Husqvarna’s KTM merger) with similar specs but a reputation for plusher suspension. Post-2013 Husqvarnas share the KTM’s DNA, making comparisons a matter of brand loyalty.

The KTM’s two-stroke engine gives it a power-to-weight edge, but it demands more frequent maintenance than four-strokes. For riders prioritizing agility and raw performance, the Six Days model remains unmatched.

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Maintenance: Keeping the Orange Beast Alive

Owning a 250 EXC Six Days means embracing its high-strung nature. Here’s how to keep it in peak condition:

• Top-End Rebuilds: Two-strokes eat pistons. Plan replacements every 50–80 hours, depending on riding intensity. MOTOPARTS.store offers forged pistons for extended durability.
• Air Filter Care: The carburetor’s appetite for clean air is insatiable. Use biodegradable filter oil and check seals after every ride.
• Suspension Servicing: WP components demand fresh oil every 100 hours. Upgrade to low-friction seals for smoother action.
• Carburetor Tuning: Jet kits tailored to your elevation are a wise investment. Consider a JD Racing Jet Kit for plug-and-play adjustments.
• Chain & Sprockets: The 14:50 gearing (13:50 for technical terrain) wears quickly. Swap to a DID ERT2 chain and steel sprockets for longevity.

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Final Verdict

The KTM 250 EXC Six Days [2012–2016] isn’t a motorcycle for the faint of heart—it’s a razor-sharp tool for riders who live for the challenge of untamed trails. Its two-stroke soul demands respect and maintenance, but rewards with unrivaled agility and adrenaline. While newer models have embraced fuel injection and TPI, this generation remains a testament to the raw, mechanical connection between rider and machine. Whether you’re retrofitting yours with upgraded parts or pushing it stock through another enduro, MOTOPARTS.store has the gear to keep your Six Days legend alive.

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Specifications sheet

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