19/10/2003
Unveiling the 2021 KTM 350 EXC-F: A Dual-Sport Masterpiece
The 2021 KTM 350 EXC-F is a truly exceptional machine that masterfully bridges the gap between the nimble agility of a 250cc dirt bike and the potent power of a 450cc powerhouse. At its heart lies a sophisticated 350cc four-stroke, single-cylinder engine that produces an impressive 35 horsepower. This output places it squarely in the performance territory of larger capacity bikes, yet it achieves this with a remarkably light wet weight of just 236 lbs (107 kg), a figure more commonly associated with 250cc-class motorcycles. This unique combination of power and lightness makes the 350 EXC-F a standout in the 2021 lineup, offering a riding experience that is both exhilarating and accessible.
KTM, the renowned Austrian manufacturer, has engineered this dual-sport motorcycle to be a true "do it all, do it your way" machine. Whether you're planning an adventurous trail ride, navigating challenging off-road terrain, or simply need to pop to the shops for some essentials, the 350 EXC-F is up to the task. Its fully street-legal status means you can seamlessly transition from the dirt to the tarmac without a second thought. This versatility is what defines the 350 EXC-F, making it an ideal companion for riders who crave both off-road excitement and everyday practicality. Priced at $11,199 USD / $12,699 CAD, this bike represents a significant investment in freedom and capability.
Key Features and Specifications
The 2021 KTM 350 EXC-F is packed with high-quality components and innovative technology designed to enhance performance, durability, and rider comfort. Here's a breakdown of its most compelling features:
Engine: The Heart of the Beast
The 350cc four-stroke, four-valve single-cylinder engine is the defining characteristic of this motorcycle. Its compact dimensions belie its impressive power output, boasting the best power-to-weight ratio on the market. The fuel-injected DOHC (Double Overhead Camshaft) design ensures smooth and responsive power delivery across the entire rev range. Weighing a mere 61.7 lbs, it achieves a remarkable balance, offering the liveliness of a 250cc with the grunt of a 450cc. This engineering marvel is what truly sets the 350 EXC-F apart.
Cylinder Head: Precision Engineering
The cylinder head is a marvel of compact DOHC design, meticulously engineered for optimal mass centralisation, which directly contributes to improved handling. The two overhead camshafts precisely control the gas flow through the ports, resulting in outstanding engine characteristics perfectly tailored for dual-sport riding. The inclusion of DLC-coated finger followers and lightweight valves (36.3mm intake, 29.1mm exhaust) allows for higher engine speeds, a critical element in the 350's dynamic and engaging performance.
Crankshaft: Optimised for Handling
KTM has strategically positioned the crankshaft close to the bike's center of gravity, further enhancing its agile handling. The use of a short connecting rod contributes to the engine's overall compact and lightweight design, promoting a snappy and immediate power delivery. The crankshaft runs directly on the crank pin via a plain big end bearing with two force-fitted bearing shells. The engine's pressurized lubrication system ensures this critical component receives ample oil, leading to extended service intervals. This means you can focus on enjoying the ride, confident in the crankshaft's reliability.
Engine Cases and Covers: Strength and Style
The engine cases are produced using a high-pressure die-casting process, a method that effectively reduces weight while maintaining exceptional strength and durability. This manufacturing technique allows for a highly centralised shaft configuration, resulting in a remarkably short and compact engine that contributes significantly to the bike's overall mass centralisation. Furthermore, the engine covers feature a unique textured surface designed to resist wear from the rider's boots, ensuring the bike retains its aesthetic appeal over time.
Transmission: PANKL Precision
A robust 6-speed transmission, supplied by the renowned PANKL Racing Systems, is a testament to the 350 EXC-F's performance pedigree. The gears are forged from high-strength raw materials, guaranteeing superior durability and unwavering reliability. The gear ratios are perfectly matched to the engine's power characteristics, providing seamless shifts and optimal power transfer. Additionally, all four-stroke engines in this series are equipped with a gear sensor, enabling the ECU to provide different engine maps tailored to each gear, thus maximising power delivery throughout the riding experience.
Engine Management System: Smart and Responsive
The state-of-the-art Keihin Engine Management System (EMS) features electronic fuel injection with a 42mm throttle body. This system incorporates separate circuits for cold starting and idle adjustment, ensuring easy and reliable starting in all conditions. The throttle cable mount is designed for easy access and smooth cable routing. The ECU intelligently communicates with the gear sensor to select the optimal engine map for each gear, ensuring you always have access to the maximum available power.
Cylinder and Piston: Lightweight Power
Within the short 88mm bore cylinder resides an incredibly lightweight, forged bridged box-type piston manufactured by CP. Despite its minimal weight, this piston boasts an exceptionally rigid structure for enhanced durability. Its lightweight construction translates to low oscillating masses, giving the engine its characteristic lively and responsive nature. The high compression ratio of 13.5:1 delivers exceptional engine performance while effectively reducing the risk of engine knocking, ensuring smooth and efficient operation.
Chassis: The Foundation of Agility
All KTM EXC models are built around high-tech, lightweight chromoly steel frames. These frames utilise hydro-formed elements and are produced using state-of-the-art robot welding, ensuring precision and strength. The frame geometries are race-proven, offering optimal stiffness for excellent rider feedback, playful handling, and remarkable stability. The laterally attached engine head stays, connecting the cylinder, head, and frame, are made from aluminium, which helps to reduce vibration and contributes to precise cornering. Lateral frame guards with a structured surface enhance grip and also act as a heat shield for the muffler on the right side. The subframe, constructed from extra-light and stable aluminium profiles weighing less than 900 grams, provides excellent rear fender stability.
Suspension: WP XPLOR Excellence
The front suspension is handled by WP XPLOR-USD forks with a 48mm diameter, renowned for their ability to soak up bumps and provide excellent control. At the rear, a WP Xplor PDS shock absorber delivers plush and effective damping, further enhancing the bike's off-road capability and on-road comfort. The generous suspension travel ensures that the 350 EXC-F can confidently tackle rough terrain.
Brakes: Confident Stopping Power
For reliable stopping power, the 350 EXC-F is equipped with a 260mm disc brake at the front and a 220mm disc brake at the rear. These brakes offer excellent modulation and stopping performance, giving the rider confidence in all riding conditions.
Electrical System: Modern Lighting
The bike features modern LED lighting for both the headlight and taillight, providing excellent visibility and a contemporary look. The ignition system is designed for reliable starting and consistent performance.
Dimensions and Weight: The Sweet Spot
The overall dimensions, including wheelbase and ground clearance, are optimised for off-road agility and stability. The seat height is designed to be manageable for a wide range of riders. As mentioned, the wet weight of 236 lbs (107 kg) is a crucial factor in the bike's exceptional handling characteristics.
KTM 350 EXC-F vs. Competitors
The KTM 350 EXC-F occupies a unique niche in the dual-sport market. It competes with established models like the Honda XR650L, Suzuki DR650S, and Kawasaki KLR650. However, the 350 EXC-F distinguishes itself with its significantly lighter weight, more modern fuel-injected engine, and sophisticated suspension components. While the competitors offer more displacement, the KTM's focused engineering delivers a more engaging and capable riding experience, particularly in off-road scenarios.
| Feature | 2021 KTM 350 EXC-F | Honda XR650L | Suzuki DR650S | Kawasaki KLR650 |
|---|---|---|---|---|
| Engine Type | 350cc 4-stroke, 4-valve Single | 649cc 4-stroke, 2-valve Single | 644cc 4-stroke, 2-valve Single | 652cc 4-stroke, 4-valve Single |
| Horsepower (approx.) | 35 HP | ~40 HP | ~40 HP | ~47 HP |
| Wet Weight (approx.) | 236 lbs (107 kg) | ~346 lbs (157 kg) | ~366 lbs (166 kg) | ~432 lbs (196 kg) |
| Fuel System | Fuel Injection | Carburetor | Carburetor | Fuel Injection |
| Transmission | 6-Speed | 5-Speed | 5-Speed | 5-Speed |
| Street Legal | Yes | Yes | Yes | Yes |
Frequently Asked Questions (FAQ)
Q1: Is the KTM 350 EXC-F suitable for beginners?
While the 350 EXC-F is a capable machine, its performance-oriented nature might be best suited for riders with some experience. However, its manageable weight and user-friendly power delivery can make it a viable option for determined beginners willing to take a training course.
Q2: What is the fuel range of the 2021 KTM 350 EXC-F?
The tank capacity is approximately 2.25 gallons (8.5 litres). Fuel range will vary significantly based on riding conditions, throttle input, and terrain. KTM does not officially provide a specific MPG or range estimate.
Q3: Can the KTM 350 EXC-F handle long-distance highway travel?
The 350 EXC-F is primarily designed for off-road and mixed-terrain riding. While it is street-legal and can handle short highway stints, it is not optimized for extended, high-speed highway cruising compared to dedicated touring or adventure motorcycles. Its gearing and rider ergos are more focused on off-road control.
Q4: What maintenance is required for the KTM 350 EXC-F engine?
Like all high-performance motorcycles, the 350 EXC-F requires regular maintenance. This includes oil and filter changes, air filter cleaning, chain maintenance, and regular checks of all critical components. Consulting the owner's manual for specific service intervals and procedures is highly recommended.
Q5: When did KTM start importing a 350 XCF model?
KTM has a history of producing 350cc off-road competition models. The EXC-F designation specifically refers to their street-legal dual-sport variants. The exact year of initial import for a 350 XCF (non-F) or EXC-F model can vary by region, but 350cc four-stroke models have been part of their off-road lineup for many years. The 2021 model year discussed here is a recent iteration of this popular platform.
Conclusion
The 2021 KTM 350 EXC-F stands out as a supremely capable and versatile dual-sport motorcycle. Its innovative engineering, blending the power characteristics of a larger engine with the agility of a lighter chassis, creates an unparalleled riding experience. Whether you're tackling challenging trails or navigating urban landscapes, the 350 EXC-F offers a compelling package of performance, reliability, and pure riding enjoyment. It's a true testament to KTM's commitment to producing high-quality, rider-focused machines.
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