Back to Bike FinderYears: 2005 · 2004 · 2003
KTM 525 SX Racing
2003Off-road

KTM 525 SX Racing

Key specifications

Engine
510 cc
Weight
107 kg
Fuel type
petrol
Fuel capacity
1.9 L
Transmission
4-speed
Seat height
36 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2003 KTM 525 SX Racing, a standout in the world of cross-motocross motorcycles. This bike was designed for serious competitors and weekend warriors alike, offering an exhilarating combination of power, agility, and durability. Positioned at the forefront of KTM's racing lineup, the 525 SX Racing embodies the brand's commitment to high-performance off-road riding. With its race-ready features and lightweight design, this model has carved out a niche for itself among riders who seek both competitive edge and pure enjoyment on the track. At the heart of the 525 SX Racing is a robust 510.40 cc single-cylinder, four-stroke engine that delivers impressive power and torque. With a compression ratio of 11.0:1, this beast is engineered for high-performance riding, ensuring that every twist of the throttle has the potential to launch you ahead of the competition. The 4-speed gearbox, paired with a precise chain final drive, allows riders to harness the engine's capabilities effectively, whether navigating tight corners or powering down straightaways. The liquid cooling system keeps the engine performing optimally, even during the most intense rides, while the carburettor fuel system provides responsive throttle control, enhancing the overall riding experience. The KTM 525 SX Racing is outfitted with features that highlight its racing pedigree. The motorcycle boasts a well-balanced chassis equipped with a suspension system that provides an impressive front travel of 300 mm (11.8 inches) and rear travel of 335 mm (13.2 inches), ensuring a smooth ride over rough terrain. The braking system features disc brakes with a front diameter of 260 mm (10.2 inches) and a rear diameter of 220 mm (8.7 inches), allowing for reliable stopping power when you need it most. With a seat height of 925 mm (36.4 inches) and a ground clearance of 380 mm (15.0 inches), the 525 SX Racing strikes an excellent balance between control and comfort, making it suitable for a variety of riders. **

Pros

  • Powerful Engine Performance: The 510.40 cc engine delivers ample power and torque, making it ideal for competitive racing and demanding trails.
  • Lightweight and Agile: Weighing in at just 107 kg (235.9 pounds), the 525 SX Racing is easy to maneuver and control in various terrains.
  • Advanced Suspension System: With substantial front and rear suspension travel, it offers excellent handling and comfort over rough surfaces.

Cons

  • Limited Fuel Capacity: With a fuel tank capacity of just 7 liters (1.85 gallons), longer rides may require frequent refueling.
  • High Seat Height: The seat height of 925 mm (36.4 inches) may be challenging for shorter riders to manage comfortably.
  • Racing Focused: While it excels in performance, its racing-oriented design may not be ideal for casual or novice riders looking for an everyday bike.

Technical details

Source specification data

Make
KTM
Model
525 SX Racing
Category
Cross-motocross
Gearbox
4-speed
Fuel System
Carburettor
Bore X Stroke
95.0 x 72.0 mm (3.7 x 2.8 inches)
Compression
11.0:1
Displacement
510.40 ccm (31.14 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Transmission Type Final Drive
Chain
Dry Weight
107.0 kg (235.9 pounds)
Seat Height
925 mm (36.4 inches) If adjustable, lowest setting.
Fuel Capacity
7.00 litres (1.85 gallons)
Ground Clearance
380 mm (15.0 inches)
Rear Tyre
110/90-19
Front Tyre
80/100-21
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Wheel Travel
335 mm (13.2 inches)
Front Wheel Travel
300 mm (11.8 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
260 mm (10.2 inches)