KTM 350 EXC-F Six Days - 2021 Specifications and Reviews

The 2021 KTM 350 EXC-F Six Days is a lightweight enduro bike designed for cross-country and off-road racing, offering an ideal balance of power and maneuverability for intermediate to advanced riders. Its 350cc liquid-cooled four-stroke engine delivers smooth power delivery through a six-speed transmission, while the Six Days heritage model emphasizes durability and reliability for demanding trail conditions and competition use.

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General information

CategoryEnduro / offroad
Year2021
ModelKTM 350 EXC-F Six Days

Engine and Transmission Specifications

Driveline5/8 x 1/4
ClutchWet, DDS multi-disc clutch, Brembo hydraulics
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
IgnitionKeihin EMS
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection
Bore x Stroke88.0 x 57.5 mm (3.5 x 2.3 inches)
Power45.0 HP (32.8 kW)
Engine detailsBalancer shaft
Engine typeSingle cylinder, four-stroke
Capacity:349.7 ccm (21.34 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. Brembo single-piston floating calliper
Diameter260 mm (10.2 inches)
Front brakesSingle disc. Brembo twin-piston floating calliper
Rear wheel travel310 mm (12.2 inches)
Rear SuspensionWP Xplor PDS shock absorber
Front wheel travel300 mm (11.8 inches)
Front SuspensionWP-USD Xplor 48 with preload adjuster
Rake (fork angle)26.5°
Frame typeChrome-molybdenum steel central-tube frame

Physical measures and capacities

Reserve fuel capacity3.83 litres (1.01 US gallons)
Fuel capacity9.00 litres (2.38 US gallons)
Wheelbase1482 mm (58.3 inches)
Ground clearance355 mm (14.0 inches)
Seat height960 mm (37.8 inches) If adjustable, lowest setting.
Power/weight ratio0.4314 HP/kg
Dry weight104.3 kg (229.9 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric
Color optionsOrange/white/blue/red

Performance Profile & Rider Fit

Best For

Track30%
City20%
Cornering90%
Daily Riding20%
Touring25%
Passenger5%

Rider Profile

Best ForThis is a serious competition-bred enduro machine best suited to experienced off-road riders, not beginners.
PurposeBuilt for hardcore enduro racing and technical off-road trails, with Six Days trim signaling extra durability and works-level components.
Rider FitThe tall 960 mm seat height, minimal weight, and aggressive off-road ergonomics demand good fitness, strong legs, and off-road riding skill.
CharacterA light, high-revving, razor-sharp single-cylinder machine that rewards aggressive, skilled riding over rough terrain.
Not Ideal ForThis is not a good fit for new riders, commuters, or anyone wanting a comfortable road-going or long-distance touring bike.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 KTM 350 EXC-F Six Days Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 KTM 350 EXC-F Six Days, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 KTM 350 EXC-F Six Days is an impressive off-road motorcycle that is designed for serious enthusiasts and competitive riders. With its powerful 350cc engine, lightweight chassis, and advanced suspension system, this bike offers exceptional performance on the trails. It also boasts a rugged and durable build that can withstand the demands of off-road riding, making it a reliable choice for riders who want a bike that can handle tough terrain. The Six Days edition of the KTM 350 EXC-F also comes with special features such as a skid plate, hand guards, and a radiator fan, making it ready to tackle even the most challenging off-road adventures. Overall, the 2021 KTM 350 EXC-F Six Days is a top-notch off-road motorcycle that delivers exceptional performance and rugged reliability. Its powerful engine, advanced suspension, and special features make it a great choice for serious off-road riders who want a bike that can handle the toughest trails. Whether you're competing in enduro events or exploring rugged terrain for fun, the KTM 350 EXC-F Six Days is a capable and dependable choice for off-road riding.
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