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KTM 450 SX Racing
2005Off-road

KTM 450 SX Racing

Key specifications

Engine
449 cc
Weight
105 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 2005 KTM 450 SX Racing motorcycle, a fierce contender in the cross-motocross category that has captivated riders with its blend of power, agility, and precision. Designed for the serious off-road enthusiast, the 450 SX Racing stands as a testament to KTM's commitment to performance and innovation. With its lightweight construction, advanced technology, and aggressive styling, this bike is made to dominate the track and tackle challenging terrains, making it a favorite among motocross racers and trail riders alike. At the heart of the 450 SX Racing is a potent single-cylinder, four-stroke engine boasting a displacement of 449.40 ccm. This powerhouse delivers exhilarating performance with a compression ratio of 12.0:1, ensuring that every twist of the throttle translates into thrilling acceleration. The engine features a Keihin MX FCR 41 carburettor that optimizes fuel delivery, while the Kokusan digital ignition system ignites the fire within, providing precise timing for maximum power. Coupled with a 4-speed gearbox, the bike is built for seamless shifts, allowing riders to harness the full potential of its robust torque, whether launching off the starting line or tackling steep inclines. The chassis and suspension of the 2005 KTM 450 SX Racing are engineered for optimal handling and stability. Constructed from chromium molybdenum, the frame is both lightweight and incredibly strong, contributing to the bike's nimble nature. The WP-USD 48 mm front suspension and WP-PDS rear shock absorber work in harmony to offer an impressive 335 mm of rear travel, providing excellent shock absorption on rugged terrains. With a ground clearance of 385 mm and a seat height of 925 mm, the bike is designed to accommodate a variety of rider sizes while maintaining a low center of gravity for enhanced maneuverability. The hydraulic wet multi-disc clutch ensures smooth engagement and disengagement, allowing for effortless control in any riding scenario. **

Pros

  • Powerful Engine Performance: The single-cylinder, four-stroke engine delivers robust power and torque, making it ideal for both racing and off-road excursions.
  • Lightweight and Agile Design: Weighing only 105.2 kg, the bike is easy to handle, allowing for nimble maneuvering on tight tracks and trails.
  • Advanced Suspension System: The high-quality WP suspension components provide excellent shock absorption and stability, enhancing the overall riding experience on varied terrains.

Cons

  • Kick Start Only: The absence of an electric start may be a drawback for some riders, particularly in challenging conditions where quick restarts are essential.
  • Limited Fuel Capacity: With a fuel tank of only 7.00 liters, longer rides may require frequent refueling, which can be inconvenient for extended trail excursions.
  • High Seat Height: The 925 mm seat height may pose a challenge for shorter riders, potentially affecting their comfort and control while riding.

Technical details

Source specification data

Make
KTM
Model
450 SX Racing
Category
Cross-motocross
Starter
Kick
Clutch
Wet multi-disc clutch, operated hydraulically
Gearbox
4-speed
Ignition
Kokusan digital 4K-3A
Fuel System
Carburettor. Keihin MX FCR 41
Bore X Stroke
95.0 x 63.4 mm (3.7 x 2.5 inches)
Compression
12.0:1
Displacement
449.40 ccm (27.42 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Lubrication System
Pressure lubrication with 2 Eaton pumps
Transmission Type Final Drive
Chain
Dry Weight
105.2 kg (231.9 pounds)
Seat Height
925 mm (36.4 inches) If adjustable, lowest setting.
Fuel Capacity
7.00 litres (1.85 gallons)
Overall Width
450 mm (17.7 inches)
Ground Clearance
385 mm (15.2 inches)
Rake
26.5°
Trail
112 mm (4.4 inches)
Frame Type
chromium molybdenum
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP-PDS shock absorber
Front Suspension
WP-USD 48 mm (1.89 inch)
Rear Wheel Travel
335 mm (13.2 inches)
Rear Brakes Diameter
260 mm (10.2 inches)
Front Brakes Diameter
216 mm (8.5 inches)