KTM 525 SX Racing - 2004 Specifications and Reviews

The 2004 KTM 525 SX Racing is a high-performance motocross machine built for competitive off-road riders seeking raw power and aggressive handling. Its potent 510cc liquid-cooled four-stroke engine delivers impressive torque, while the lightweight 105.8kg chassis enables sharp cornering and rapid acceleration. Best known for its winning race heritage, this bike excels in sand and soft terrain conditions.

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General information

CategoryCross / motocross
Year2004
ModelKTM 525 SX Racing

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox4-speed
Cooling systemLiquid
Fuel controlOHC
Fuel systemCarburettor
Bore x stroke95.0 x 72.0 mm (3.7 x 2.8 inches)
Compression11.0:1
Stroke4
Engine typeSingle cylinder
Capacity:510.40 ccm (31.14 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,481 mm (58.3 inches)
Ground clearance380 mm (15.0 inches)
Overall width525 mm (20.7 inches)
Overall height525 mm (20.7 inches)
Alternate seat height675 mm (26.6 inches) If adjustable, highest setting.
Seat height925 mm (36.4 inches) If adjustable, lowest setting.
Dry weight105.8 kg (233.2 pounds)

KTM 525 SX Racing dimensions and frame

Rear brakes diameter260 mm (10.2 inches)
Rear brakesSingle disc
Front brakes diameter216 mm (8.5 inches)
Front brakesSingle disc
Rear suspensionWP-PDS-DA shock absorber
Front suspensionWP-USD 48/26 MA/PA
Trail64 mm (2.5 inches)
Rake (fork angle)24.0°
Frame typeChromium molybdenum

Speed and acceleration

Color optionsOrange
Fuel capacity7.00 litres (1.85 gallons)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track40%
City10%
Cornering85%
Daily Riding8%
Touring8%
Passenger0%

Rider Profile

Best ForThis is a full-on competition motocross machine best suited to experienced off-road riders and racers, not beginners.
PurposeBuilt purely for motocross racing, it excels at jumps, berms, and rough closed-course terrain rather than any form of street use.
Rider FitThe tall 925mm seat height, lightweight 106kg dry chassis, and aggressive four-stroke power delivery demand strong rider fitness and confidence standing on the pegs.
CharacterSharp, explosive, and razor-focused, this bike rewards aggressive inputs with rapid direction changes and strong acceleration out of corners.
Not Ideal ForThis is not suitable for commuting, touring, carrying a passenger, or any rider seeking comfort and low-maintenance road use.

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

Rider Fit Visualizer

2004 KTM 525 SX Racing Rider Ergonomics Assessment

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

Feet:

At 925mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2004 KTM 525 SX Racing, with a cramped knee angle of around 80 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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