KTM 525 SX Racing - 2003 Specifications and Reviews
The 2003 KTM 525 SX Racing is a high-performance motocross machine designed for competitive riders seeking maximum power and agility. Its potent 510cc liquid-cooled four-stroke engine delivers impressive output in a lightweight package, making it ideal for professional and amateur racers. The bike is renowned for its responsive handling and aggressive styling on mixed terrain.
General information | |
| Category | Cross / motocross |
| Year | 2003 |
| Model | KTM 525 SX Racing |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | 4-speed |
| Cooling system | Liquid |
| Fuel system | Carburettor |
| Bore x stroke | 95.0 x 72.0 mm (3.7 x 2.8 inches) |
| Compression | 11.0:1 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 510.40 ccm (31.14 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,481 mm (58.3 inches) |
| Ground clearance | 380 mm (15.0 inches) |
| Seat height | 925 mm (36.4 inches) If adjustable, lowest setting. |
| Dry weight | 107.0 kg (235.9 pounds) |
KTM 525 SX Racing dimensions and frame | |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 110/90-19 |
| Front tyre dimensions | 80/100-21 |
| Rear suspension travel | 335 mm (13.2 inches) |
| Front suspension travel | 300 mm (11.8 inches) |
| | |
Speed and acceleration | |
| Fuel capacity | 7.00 litres (1.85 gallons) |
Other specs | |
| Maintenance | Find 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 For | This is a full-on competition motocross machine best suited to experienced off-road riders and racers, not beginners. |
| Purpose | Built purely for motocross racing, it excels at jumps, berms, and rough closed-course terrain rather than any form of street use. |
| Rider Fit | The tall 925mm seat height, lightweight 106kg dry chassis, and aggressive four-stroke power delivery demand strong rider fitness and confidence standing on the pegs. |
| Character | Sharp, explosive, and razor-focused, this bike rewards aggressive inputs with rapid direction changes and strong acceleration out of corners. |
| Not Ideal For | This 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.
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