KTM 450 SX-F - 2017 Specifications and Reviews

The 2017 KTM 450 SX-F is a high-performance four-stroke motocross bike engineered for competitive riders and serious enthusiasts. Known for its potent 450cc engine, precise handling, and premium WP suspension components, it delivers aggressive power and control on demanding terrain. Its electric starter, aggressive geometry, and advanced braking system make it a top choice for racers seeking race-winning performance.

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General information

CategoryCross / motocross
Year2017
ModelKTM 450 SX-F
 
 

Engine and Transmission Specifications

Driveline5/8 x 1/4
ClutchWet, DDS multi-disc clutch, Brembo hydraulics
Transmission type,final driveChain
Gearbox4-speed
Cooling systemLiquid
IgnitionKeihin EMS
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Engine typeSingle cylinder, four-stroke
Capacity:449.30 ccm (27.42 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsCNC machined hubs. Excel rims. Wire spoked.
Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc. Brake calipers on floating bearings
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc. Brake calipers on floating bearings
Rear wheel travel300 mm (11.8 inches)
Rear SuspensionWP shock absorber with linkage
Front wheel travel300 mm (11.8 inches)
Front SuspensionWP-USD, AER 48, Ø 48 mm
Rake (fork angle)26.5°
Frame type25CrMo4 steel central-tube frame

Physical measures and capacities

Fuel capacity7.00 litres (1.85 gallons)
Wheelbase1,485 mm (58.5 inches)
Ground clearance370 mm (14.6 inches)
Seat height960 mm (37.8 inches) If adjustable, lowest setting.
Dry weight100.2 kg (220.9 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
ElectricalLightweight 495 g lithium-ion starter battery
StarterElectric
Color optionsOrange/white/black

Performance Profile & Rider Fit

Best For

Track92%
City10%
Cornering90%
Daily Riding15%
Touring10%
Passenger5%

Rider Profile

Best ForThis is a purebred motocross machine best suited to experienced off-road or competitive riders, not beginners.
PurposeBuilt for motocross racing and aggressive off-road riding on tracks and rough terrain.
Rider FitThe tall 958 mm seat height, high ground clearance, and firm suspension demand strong rider fitness and confident bike control.
CharacterA light, explosive, high-revving single-cylinder racer that rewards aggressive input with razor-sharp agility and jump-ready suspension.
Not Ideal ForThis bike is not suited to riders wanting a comfortable commuter, long-distance tourer, or a passenger-friendly ride.

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

Rider Fit Visualizer

2017 KTM 450 SX-F 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 2017 KTM 450 SX-F, 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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