KTM 250 EXC-F Six Days [2012]: A Time-Tested Enduro Warrior That Still Delivers Thrills

Introduction

The 2012 KTM 250 EXC-F Six Days isn’t just a motorcycle—it’s a statement. Built specifically for the grueling International Six Days Enduro (ISDE), this machine was designed to survive 1,000+ km of off-road punishment while keeping riders competitive. Over a decade later, it remains a benchmark for hardcore enduro enthusiasts who value precision engineering and race-ready performance. Let’s dissect why this orange beast still turns heads and dominates trails.

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Riding Experience: Where Engineering Meets Adrenaline

Engine Performance: A Four-Stroke That Thinks It’s a Two-Stroke

At the heart of the 250 EXC-F Six Days lies a liquid-cooled, 248.6 cc single-cylinder engine that punches far above its displacement. The DOHC valvetrain with titanium valves allows revs to soar up to 13,000 RPM, delivering a surprisingly aggressive power curve.

Key impressions:
- Low-end torque is crisp, letting you claw up rocky inclines without stalling.
- Mid-range punch feels electric, thanks to the Keihin EFI system’s razor-sharp throttle response.
- Top-end scream rivals smaller two-strokes, making it a blast on open fire roads.

The optional map select switch (a Six Days exclusive) lets you toggle between aggressive and mellower fueling—a godsend during technical sections or fatigue-inducing marathon stages.

Chassis & Suspension: Precision in the Rough

KTM’s chrome-molybdenum steel frame and redesigned swingarm strike a perfect balance between stiffness and flex. Paired with WP’s legendary suspension, this bike devours obstacles:
- WP 48 mm USD forks (300 mm travel) float over roots and rocks while maintaining razor-sharp steering precision.
- WP PDS rear shock (335 mm travel) eliminates linkage hassles and provides progressive damping for hard landings.

At 107.5 kg (237 lbs) dry, the 250 EXC-F feels flickable in tight singletrack yet stable at speed. The 63.5° steering head angle and 1,482 mm (58.4") wheelbase make it agile without sacrificing high-speed composure.

Ergonomics: Built for Enduro Marathons

The Camel SXS seat (a Six Days upgrade) is a revelation—firm enough for control but padded sufficiently for 40+ km stages. At 970 mm (38.2"), the seat height suits taller riders, but the narrow chassis lets shorter pilots dab confidently.

Standing up reveals thoughtful touches:
- Orange-anodized Renthal bars offer a natural grip position.
- Bodywork contours keep knees locked in during hard braking.
- Radiator fan prevents overheating during slow, technical crawling.

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Competition: How the Six Days Stacks Up Against Legends

Yamaha WR250F

The WR250F’s milder powerband and softer suspension cater to trail riders, but it feels heavy (116 kg wet) compared to the KTM. The Yamaha lacks the Six Days’ race-ready extras (map switch, radiator fan) and requires carburetor tuning for altitude changes—a non-issue with the KTM’s EFI.

Honda CRF250X

Honda’s reliability is legendary, but the CRF250X’s steel frame and conventional forks feel dated next to the KTM’s WP suspension and chromoly chassis. The Honda also misses out on an electric starter—a critical feature when stalled mid-hillclimb.

Husqvarna TE250 (Pre-2013 Models)

Pre-Husky revival models shared parts with KTMs but lacked the Six Days’ bespoke upgrades. Their softer suspension tuning favored beginners, while the KTM’s aggressive setup appealed to seasoned racers.

Verdict: The 250 EXC-F Six Days outguns rivals with its race-bred suspension, EFI reliability, and obsessive weight savings. It’s less forgiving than a WR250F but rewards skilled riders with unmatched agility.

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Maintenance: Keeping Your Six Days Battle-Ready

Critical Service Intervals

• Engine Oil: Replace every 15 hours (1.2L of 10W-50 with filter). Pro tip: Use MOTOPARTS.store’s synthetic oil kit (PN: MOTO-SYNTH10W50) for reduced clutch drag.
• Valve Checks: Every 30 hours (intake: 0.10–0.15 mm / 0.004–0.006 in; exhaust: 0.12–0.17 mm / 0.005–0.007 in).
• Coolant: Flush annually with ethylene glycol-based fluid (1.2L capacity).

Upgrade Recommendations from MOTOPARTS.store

1. Air Filter & Cage: Swap the stock filter for a Twin Air kit (PN: TWIN-KTM250-12) for better airflow and easier cleaning.
2. Exhaust System: A FMF Q4 silencer (PN: FMF-Q4-KTM12) boosts mid-range without violating noise limits.
3. Chain & Sprockets: The OEM 13:50 gearing works well, but a DID ERT2 chain (PN: DID-ERT2-520) and steel rear sprocket (PN: SPROCK-KTM50T) extend lifespan.
4. Brake Pads: EBC MX-S pads (PN: EBC-MX-S220) reduce fade during prolonged downhill descents.
5. Suspension Tuning: Send your WP forks to MOTOPARTS.store’s tuning service for custom valving matched to your weight/terrain.

Common Issues to Watch

• Starter Motor: The compact starter can overheat. Install a heat shield (PN: MOTO-HS-KTM12) for protection.
• Fuel Pump: Early EFI models benefit from an upgraded fuel filter (PN: MOTO-FUELFILTER12).
• Radiator Guards: The stock plastic guards are tough, but aluminum units (PN: MOTO-RADGUARD-KTM) add brute-force protection.

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Conclusion: A Modern Classic for the Discerning Rider

The 2012 KTM 250 EXC-F Six Days isn’t just a relic—it’s a testament to how purposeful design transcends time. While newer models boast TFT screens and traction control, this bike reminds us that lightweight construction, bulletproof EFI, and world-class suspension never go out of style. Whether you’re tackling hare scrambles or exploring backcountry trails, the Six Days package delivers a raw, unfiltered connection to the terrain that modern electronics can’t replicate.

At MOTOPARTS.store, we’re committed to keeping these legends alive. From OEM-spec replacement parts to performance upgrades, our catalog ensures your Six Days remains a force of nature.

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Specifications sheet

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