KTM 350 EXC-F (2012–2016): The Goldilocks of Enduro Machines

Introduction

Throwing a leg over the KTM 350 EXC-F feels like strapping into a precision instrument designed for chaos. This isn’t just another dirt bike—it’s a calculated middle ground between the frenetic energy of a 250cc lightweight and the bulldozing torque of a 450cc bruiser. Introduced in 2012 and refined through 2016, this generation of the 350 EXC-F carved out a cult following among riders who craved versatility without compromise. After a day spent wrestling it through rocky singletrack, hill climbs, and loose desert washes, it’s clear why this bike earned its reputation as the “thinking rider’s enduro.”

Engine Performance: Where Physics Meets Fun

The Sweet Spot of Displacement

The heart of the 350 EXC-F is its 349.7cc liquid-cooled DOHC single-cylinder engine. With a bore and stroke of 88 x 57.5 mm (3.5 x 2.3 inches), it’s a short-stroke screamer that revs freely to 12,000 RPM while still delivering a surprisingly meaty midrange. KTM’s claim of “450 power in a 250 chassis” isn’t just marketing fluff. On tight trails, the engine pulls cleanly from as low as 2,000 RPM, avoiding the stalling drama that plagues bigger thumpers. Crack the throttle open, though, and it transforms into a snarling beast capable of lofting the front wheel in third gear.

Fuel Injection Done Right

The Keihin EFI system, with its 42 mm throttle body, is a star here. Unlike carbureted rivals of its era, the 350 EXC-F laughs at altitude changes and off-camber climbs. There’s no bog, no hesitation—just instant response. The optional map-select switch (a PowerPart accessory) lets you toggle between aggressive and mellower curves, but even the stock setup feels telepathic.

Balancer Shaft Sorcery

What’s most shocking is how smooth this single-cylinder engine runs. The laterally mounted balancer shaft—which also drives the water pump and timing chain—neutralizes vibrations so effectively that you’ll forget you’re riding a big single after an hour in the saddle.

Handling & Ergonomics: A Swiss Army Knife on Two Wheels

Weight? What Weight?

At 107.5 kg (237 lbs) dry, the 350 EXC-F dances beneath you like a trials bike. The chrome-molybdenum steel frame and cast aluminum swingarm strike a perfect balance between rigidity and flex, translating to razor-sharp cornering without the harshness. Steering head angle? 63.5 degrees. Wheelbase? 1,482 mm (58.3 inches). These numbers translate to a bike that flicks between trees like a motocrosser but stays planted at speed.

The Art of the Cockpit

KTM’s ergonomics team deserves a trophy. The 970 mm (38.2-inch) seat height sounds intimidating, but the narrow chassis and sculpted seat let even shorter riders dab a boot confidently. The Neken handlebar—adjustable in four positions—and slim fuel tank (9 liters / 2.4 US gal) create a standing-friendly layout. After a muddy downhill section, you’ll appreciate the long rear fender’s stone-deflecting abilities.

Suspension Setup: WP’s Masterclass

Forks That Eat Rocks for Breakfast

Up front, the 48 mm WP USD 4860 MXMA fork serves up 300 mm (11.8 inches) of travel. Out of the crate, it’s tuned for enduro—plush on square-edged hits but progressive enough to handle G-out landings. The open-cartridge design allows easy tuning; I found backing out the compression clickers two turns transformed it into a roots-and-rocks vacuum.

PDS Rear: Love It or Learn It

The rear WP PDS (Piston Damping System) shock delivers 335 mm (13.1 inches) of travel without a linkage. Purists argue it’s less tunable than linkage systems, but in practice, the PDS shines in technical terrain. The lack of linkage guards means fewer parts to smash on logs, and the rising-rate curve soaks up big hits without wallowing. Dialing in the high-speed compression damping is key for faster riders.

Braking Performance: Brembo’s Dirt Domain

Bite Without the Headshake

Brembo’s 260 mm front rotor and twin-piston caliper deliver stoppies-on-demand power, yet modulate beautifully on slick clay. The 220 mm rear disc (single-piston) avoids lockup antics, even when you’re dancing on the pedal through switchbacks. After a brutal downhill, the brakes stayed fade-free—no small feat for off-the-shelf components.

Competition: How the 350 EXC-F Stacks Up

Husqvarna FE350 (2014–2016)

• Power: Similar 349cc engine, but with a focus on smoother delivery
• Weight: 108.9 kg (240 lbs)—slightly heavier due to linkage suspension
• Edge: KTM’s PDS vs. Husky’s linkage—pick your poison
• Upgrade Tip: Husky riders often swap to KTM’s hydraulic clutch

Yamaha WR250F

• Power: 250cc lacks the 350’s overtaking grunt
• Weight: 112 kg (247 lbs)—feels portlier than specs suggest
• Edge: Yamaha’s reliability vs. KTM’s adrenaline rush

Honda CRF450X

• Power: More torque, but 123 kg (271 lbs) wears you out
• Terrain: Honda rules open deserts; KTM owns the technical
• Upgrade Tip: CRF riders buy kickstarters; KTM riders buy bling

Maintenance: Keeping the Orange Beast Happy

Oil & Filters: Twin Pumps, Twin Care

The twin oil pumps (one for engine, one for transmission) are genius but demand clean lubricant. Change both engine oil (1.2L / 1.3 US qt) and transmission fluid every 15 hours. MOTOPARTS.store’s high-capacity oil filter ($12.99) adds safety margins for dusty rides.

Valves: Titanium’s Tight Tolerances

Those DLC-coated finger followers and titanium valves need checking every 30 hours:
- Intake: 0.10–0.15 mm (0.004–0.006 in)
- Exhaust: 0.13–0.18 mm (0.005–0.007 in)
Pro Tip: Use MOTOPARTS.store’s shim kit for painless adjustments.

Chain & Sprockets: 14/52 Gearing Wisdom

The stock 14/52 sprocket combo (13/52 optional) wears fast in gritty conditions. Upgrade to a DID ERT2 chain and steel sprockets for longevity.

Air Filter: Twin-Air’s Savior

The tool-free airbox is a blessing; clean it every ride with MOTOPARTS.store’s biodegradable filter oil ($9.95).

Conclusion: The Enduro Whisperer

The KTM 350 EXC-F (2012–2016) isn’t just a bike—it’s a philosophy. It proves that precision engineering can tame the wildest trails without dulling the thrill. Whether you’re a pro racer or a weekend warrior, this machine meets you at your skill level and dares you to push harder. And when the ride’s over? That’s where MOTOPARTS.store steps in, keeping your orange assassin sharp for the next battle.

Ready to make it yours? Check our curated selection of 350 EXC-F upgrades here.

Specifications sheet