KTM 250 EXC-F (2017–2020): A Test Ride Through the Lens of a Modern Enduro Icon

Introduction

The KTM 250 EXC-F isn’t just a motorcycle—it’s a declaration of intent. Built for riders who demand agility, power, and reliability in equal measure, this Austrian enduro machine carved its niche as a benchmark in the 250cc off-road segment during its 2017–2020 production run. After throwing a leg over this orange beast, it’s clear why KTM’s “Ready to Race” ethos resonates so deeply with dirt enthusiasts. From its featherweight chassis to its razor-sharp throttle response, the 250 EXC-F feels less like a production bike and more like a factory racer with a license plate. Let’s dive into what makes this generation a standout.

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Engine Performance: Precision Meets Punch

At the heart of the 250 EXC-F lies a liquid-cooled, 249.9cc single-cylinder DOHC engine that’s as refined as it is relentless. The fuel-injected powerplant churns out 43 PS (32 kW)—a figure that still turns heads in today’s competitive landscape. What struck me during the ride wasn’t just the raw power, but how usable it is. The Keihin EMS ensures crisp throttle response, whether you’re crawling through technical singletrack or pinning it across open fire roads.

The engine’s architecture is a masterclass in mass centralization. With a compact crankshaft, shorter connecting rod, and a counterbalancer shaft that tames vibrations, the EXC-F revs freely to its 12,800 RPM redline without feeling buzzy. The six-speed transmission shifts with a satisfying click, aided by a gear sensor that optimizes power delivery for each ratio. The hydraulic Brembo-actuated DDS clutch deserves special praise—its light pull and progressive engagement make it a dream in low-speed technical sections.

Metric to Imperial Tidbit:
- 249.9cc = 15.25 cubic inches
- Peak Power: 43 PS (≈42.4 HP)

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Chassis and Handling: Lightness as a Religion

KTM’s obsession with weight savings shines here. The chrome-molybdenum steel frame and aluminum subframe combine for a dry weight of 103 kg (227 lbs)—lighter than a Yamaha YZ250FX and on par with premium Euro rivals. On the trail, this translates to a bike that flicks sideways with minimal effort. The 960 mm (37.8 in) seat height might intimidate shorter riders, but the narrow profile lets you dab confidently in rutted corners.

The WP Xplor 48 USD fork and WP Xplor PDS rear shock are the unsung heroes. With 300 mm (11.8 in) of front travel and 310 mm (12.2 in) at the rear, the suspension soaks up rocks and roots while maintaining composure on high-speed hits. Adjusting compression and rebound via the fork’s dials took seconds mid-ride, a boon when transitioning from soft loam to hardpack.

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Brakes and Wheels: Stopping Power, Refined

Brembo’s signature touch is evident in the 260 mm front and 220 mm rear wave discs. Bite is aggressive yet controllable, with a steel-braided line up front eliminating mushiness. The Continental TKC 80 tires (21” front, 18” rear) strike a rare balance—enough knobbie aggression for dirt dominance without vibrating your fillings loose on pavement connectors.

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Ergonomics: Built for Battle

KTM’s “No Dirt” footpegs and grippy ODI lock-on handlebar grips keep you planted when the terrain gets rowdy. The redesigned bodywork (2017 onward) features slim shrouds that let you grip the bike with your knees effortlessly. The 8.5-liter (2.25-gallon) fuel tank is compact but sufficient for 100+ km (62+ mi) rides, and the translucent design lets you monitor fuel levels at a glance.

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Competition: How the EXC-F Stacks Up

1. Yamaha WR250F

• Pros: Softer power delivery for beginners, legendary reliability.
• Cons: Heavier at 118 kg (260 lbs), cable-actuated clutch feels dated.
• KTM Edge: Lighter, sharper suspension, hydraulic clutch.

2. Honda CRF250X

• Pros: Ultra-smooth engine, low seat height (889 mm / 35 in).
• Cons: Carbureted (until discontinuation), less aggressive geometry.
• KTM Edge: Fuel injection, modern chassis, higher ground clearance (355 mm vs. 318 mm).

3. Husqvarna FE 250

• Pros: Nearly identical DNA (same parent company), linkage rear suspension.
• Cons: Pricier, minor weight penalty.
• KTM Edge: Broader dealer network, PDS rear simplifies maintenance.

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Maintenance: Keeping Your EXC-F Razor-Sharp

1. Valve Checks

• Intake: 0.10–0.15 mm (0.004–0.006 in)
• Exhaust: 0.13–0.18 mm (0.005–0.007 in)
• Pro Tip: Inspect every 50 hours. Consider a shim kit from MOTOPARTS.store for trailside adjustments.

2. Oil Changes

• Capacity: 1.0L (1.06 qt) with filter (SAE 10W-50).
• Upgrade Suggestion: Swap to a reusable stainless steel oil filter for longevity.

3. Chain & Sprockets

• Stock gearing: 13/52. Replace chain (5/8 x 1/4”) and sprockets as a set.
• MOTOPARTS.store Pick: DID ERT3 Gold Chain for reduced stretch.

4. Cooling System

• Coolant capacity: 1.2L (1.27 qt). Use ethylene glycol-based mix.
• Watch For: Leaks at the WP radiator seams—upgrade to a reinforced aftermarket unit if prone to crashes.

5. Brake Fluid

• DOT 4/5.1 fluid. Flush annually to prevent moisture buildup.

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Conclusion: The Enduro Specialist

The KTM 250 EXC-F isn’t just a bike—it’s a partner in crime for those who live to explore beyond the pavement. Its blend of featherweight agility, tractable power, and race-ready components makes it a timeless choice in the used market. While newer models have since emerged, the 2017–2020 generation remains a sweet spot for riders seeking a no-compromise machine that’s equally at home in hare scrambles or backcountry adventures.

Whether you’re refreshing suspension bearings or upgrading to a FMF exhaust, MOTOPARTS.store has the OEM and aftermarket support to keep your EXC-F biting at the heels of modern competitors. After all, in the dirt, evolution isn’t about age—it’s about how hard you’re willing to push.

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Specifications sheet

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