KTM 350 XC-F Kailub Russell - 2021 Specifications and Reviews

The 2021 KTM 350 XC-F Kailub Russell is a lightweight enduro bike designed for technical off-road riding and cross-country racing. Its 350cc four-stroke engine delivers responsive power ideal for intermediate to advanced riders tackling challenging terrain. Known for exceptional maneuverability and fuel efficiency, it excels in rocky, steep courses where agility matters most.

2021
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General information

CategoryEnduro / offroad
Year2021
ModelKTM 350 XC-F Kailub Russell
 
 

Engine and Transmission Specifications

Exhaust systemFMF slip-on muffler
Greenhouse gases88.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption3.83 litres/100 km (26.1 km/l or 61.42 mpg)
Driveline5/8 x 1/4´ chain
ClutchMulti-plate 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)
Engine typeSingle cylinder, four-stroke
Capacity:349.7 ccm (21.34 cubic inches)
 
 

Brakes, suspension, Frame and wheels

SeatFactory seat with Selle Dalla Valle logo
WheelsKTM Factory wheels
Rear brakesSingle disc
Diameter260 mm (10.2 inches)
Front brakesSingle disc. Semi-floating
Rear wheel travel300 mm (11.8 inches)
Rear SuspensionWP XACT Monoshock with linkage
Front wheel travel310 mm (12.2 inches)
Front SuspensionWP XPLOR-USD, Ø 48 mm
Rake (fork angle)26.1°
Frame typeCentral double-cradle-type 25CrMo4 steel

Physical measures and capacities

Fuel capacity8.50 litres (2.25 US gallons)
Ground clearance370 mm (14.6 inches)
Seat height950 mm (37.4 inches) If adjustable, lowest setting.
Dry weight100.5 kg (221.6 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsSpecial edition
ElectricalLithium-ion battery
StarterElectric
Color optionsOrange/white/blue/red/green

Performance Profile & Rider Fit

Best For

Track40%
City15%
Cornering70%
Daily Riding15%
Touring20%
Passenger5%

Rider Profile

Best ForThis is a race-bred enduro machine best suited to experienced off-road riders, given its light weight, tall seat height, and race-focused ergonomics.
PurposeBuilt as a competition-oriented enduro/cross-country weapon, echoing Kailub Russell's championship-winning setup, it excels at technical trails, woods riding, and off-road racing.
Rider FitThe extremely low dry weight and tall 950mm seat height demand good rider fitness, leg length, and confidence standing on the pegs over rough terrain.
CharacterIt has the sharp, high-strung character of a purpose-built race bike, rewarding aggressive, skilled inputs rather than relaxed cruising.
Not Ideal ForThis is not the right bike for a novice rider, a daily commuter, a long-distance pavement tourer, or anyone seeking passenger-carrying comfort.

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

Rider Fit Visualizer

2021 KTM 350 XC-F Kailub Russell Rider Ergonomics Assessment

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

Feet:

At 950mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 KTM 350 XC-F Kailub Russell, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). 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 XC-F Kailub Russell is a top-of-the-line off-road motorcycle designed for high performance and durability. With its powerful 350cc engine and lightweight chassis, this bike offers exceptional handling and agility on any terrain. The KTM 350 XC-F also features advanced WP XACT suspension, Brembo brakes, and a state-of-the-art EFI system, making it a top choice for serious riders looking for a competitive edge. In addition, the KTM 350 XC-F Kailub Russell boasts a stylish design with KTM's signature orange color scheme and aggressive bodywork. The bike is also equipped with advanced technology, including a digital dashboard and electric start system for added convenience. Overall, the 2021 KTM 350 XC-F Kailub Russell is a top-tier off-road motorcycle that delivers outstanding performance and quality construction, making it a standout choice for riders looking to take their off-road adventures to the next level.
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