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2021 KTM 350 XC-F Overview
The 2021 KTM 350 XC-F is an enduro / off-road motorcycle built around 349.7 cc of displacement. Under the tank sits a Single cylinder, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation. The bore and stroke measures 88 x 57.5 mm. From a practical standpoint, the 2021 350 XC-F tips the scales at 100.5 kg, carries a 8.50-litre fuel tank and offers a seat height of 950 mm. That's roughly 98.3 kg lighter than the average enduro / off-road motorcycle in our database. Scroll down for the complete 2021 KTM 350 XC-F spec sheet covering every technical detail from suspension travel to tyre sizes.
2021 350 XC-F - Pros & Cons
Strengths
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🔧
Fuel injection: The fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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📏
Tall seat height: The 950 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
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Modest fuel capacity: The 8.50-litre tank means more frequent fuel stops on longer rides, which is worth planning around on touring routes.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Fuelling & injector care
Fuelling comes from fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Valve clearance checks
Double Overhead Cams/Twin Cam (DOHC) valve actuation on the 350 XC-F means clearances should be checked at the manufacturer's specified interval - they can tighten as mileage accumulates, and a light top-end tick is usually the first sign.
Brake disc and pad wear
The Single disc front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the 350 XC-F runs WP XPLOR-USD, Ø 48 mm and WP XACT Monoshock with linkage at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Central double-cradle-type 25CrMo4 steel - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
Low-speed handling
At just 100.5 kg, the 350 XC-F is light enough to manhandle easily at a standstill - one of the practical advantages of its class.
350 XC-F - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2021 KTM 350 XC-F, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained 350 XC-F should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any 350 XC-F. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The 350 XC-F's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
Valve clearance service
Check that valve clearances have been adjusted at the correct intervals on any used 350 XC-F. A bike with clearances out of spec doesn't always feel obviously wrong - but tight clearances accelerate valve seat wear. Ask for service documentation proving it's been done.
2021 KTM 350 XC-F - Frequently Asked Questions
What engine does the 2021 KTM 350 XC-F have?
The 2021 KTM 350 XC-F uses a Single cylinder, four-stroke engine with 349.7 cc of displacement.
How much does the 2021 KTM 350 XC-F weigh?
The 2021 KTM 350 XC-F weighs 100.5 kg. This is the manufacturer's dry figure.
What is the fuel tank capacity of the 2021 KTM 350 XC-F?
The 2021 KTM 350 XC-F has a 8.50-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 141-170 km between stops.
Is the 2021 KTM 350 XC-F suitable for shorter riders?
The 2021 KTM 350 XC-F has a seat height of 950 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2021 KTM 350 XC-F have?
The 2021 KTM 350 XC-F uses Single disc at the front and Single disc at the rear.
What fuel system does the 2021 KTM 350 XC-F use?
The 2021 KTM 350 XC-F uses Injection, providing precise fuelling across the rev range and reliable cold-start behaviour.
What suspension does the 2021 KTM 350 XC-F have?
The 2021 KTM 350 XC-F uses WP XPLOR-USD, Ø 48 mm up front and WP XACT Monoshock with linkage at the rear.
KTM 350 XC-F Spec Evolution
The KTM 350 XC-F was produced across 7 model years (2012-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2012 |
2013 |
2014 |
2015 |
2021 |
2022 |
2023 |
| Wet Weight |
292.1 kg / 643.9 lbs |
- |
112.0 kg / 246.9 lbs |
- |
- |
- |
- |
| Dry Weight |
107.8 kg / 237.7 lbs |
107.8 kg / 237.7 lbs |
107.7 kg / 237.4 lbs |
105.7 kg / 233.0 lbs |
100.5 kg / 221.6 lbs |
100.5 kg / 221.6 lbs |
102.5 kg / 226.0 lbs |
| Seat Height |
992 mm / 39.1 in. |
992 mm / 39.1 in. |
992 mm / 39.1 in. |
992 mm / 39.1 in. |
950 mm / 37.4 in. |
950 mm / 37.4 in. |
950 mm / 37.4 in. |
| Fuel Capacity |
7.50 litres / 1.98 gallons |
9.00 litres / 2.38 gallons |
9.00 litres / 2.38 gallons |
9.50 litres / 2.51 gallons |
8.50 litres / 2.25 US gallons |
8.50 litres / 2.25 US gallons |
8.50 litres / 2.25 US gallons |
| Ground Clearance (mm) |
375 mm |
376 mm |
376 mm |
376 mm |
370 mm |
370 mm |
370 mm |
| Ground Clearance (in.) |
14.8 inches |
14.8 inches |
14.8 inches |
14.8 inches |
14.6 inches |
14.6 inches |
14.6 inches |
| Fuel Control |
Single Overhead Cams (SOHC) |
Single Overhead Cams (SOHC) |
- |
- |
Double Overhead Cams/Twin Cam (DOHC) |
Double Overhead Cams/Twin Cam (DOHC) |
Double Overhead Cams/Twin Cam (DOHC) |
| Displacement (cc) |
349.70 cc |
349.70 cc |
349.70 cc |
349.70 cc |
349.7 cc |
349.7 cc |
349.7 cc |
Key Specifications
Engine
Single cylinder, four-stroke
Power
Not published by manufacturer
Torque
Not published by manufacturer
Top Speed
Not published by manufacturer
Weight
100.5 kg / 221.6 lbs
Fuel Capacity
8.50 litres / 2.25 US gallons
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Full 2021 KTM 350 XC-F Specifications
Colours
Orange/white/black
Ground Clearance (in.)
14.6 inches
Ground Clearance (mm)
370 mm
Seat Height
950 mm / 37.4 in.
Dry Weight
100.5 kg / 221.6 lbs
Fuel Capacity
8.50 litres / 2.25 US gallons
Bore x Stroke (in,)
3.5 x 2.3 inches
Bore x Stroke (mm)
88.0 x 57.5 mm
CO2
88.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Displacement (cc)
349.7 cc
Displacement (ci)
21.34 cubic inches
Engine Type
Single cylinder, four-stroke
Fuel Control
Double Overhead Cams/Twin Cam (DOHC)
Fuel System
Injection
Emissions
Euro 4
Fuel Consumption
3.83 litres/100 km (26.1 km/l or 61.42 mpg)
Ignition
Keihin EMS
Starter
Electric
Clutch
Multi-plate clutch, Brembo hydraulics
Final Drive
Chain (final drive)
Gearbox
6-speed
Primary Drive
5/8 x 1/4´ chain
Frame Type
Central double-cradle-type 25CrMo4 steel
Suspension - Front
WP XPLOR-USD, Ø 48 mm
Suspension - Rear
WP XACT Monoshock with linkage
Rake
26.1°
Wheel Travel - Front
310 mm / 12.2 in.
Wheel Travel - Rear
300 mm / 11.8 in.
Brakes - Front
Single disc
Brakes - Rear
Single disc
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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