KTM 450
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The KTM 450 SX-F dominates the motocross scene with its potent 449.9cc single-cylinder engine delivering 63 hp at 9,500 rpm. You’ll appreciate the lightweight 220.9-pound dry chassis and race-ready ergonomics, including the 37.4-inch seat height and hydraulic DDS clutch system. It’s engineered for track supremacy with Dunlop MX33 tires on 21″/19″ aluminum wheels. Discover why this competition-focused machine outperforms in technical terrain and high-speed sections.
KTM AG, Austria. Production years 2007-Present.
Engine and Displacement of KTM450
Single-cylinder 4-stroke, 449.9cc, liquid-cooled, SOHC, 4 valves.
Chassis of KTM450
Chrome-moly steel perimeter frame with aluminum subframe.
Wheels & Tires of KTM450
Front: 21″ aluminum. Rear: 19″ aluminum. Dunlop MX33 tires.
Transmission and Clutch of KTM450
5-speed manual, DDS multi-disc clutch, chain final drive.
Fuel System and Fuel Capacity of KTM450
Keihin electronic fuel injection, 44mm throttle body. 7.5L (1.98 gal).
Weight, Seat Height, Dimensions, Wheelbase
- Weight: 100.2 kg (220.9 lbs) dry
- Seat Height: 950 mm (37.4 inches)
- Dimensions: 2182×827×1302 mm (85.9×32.6×51.3 inches)
- Wheelbase: 1485 mm (58.5 inches)
- Ground Clearance: 370 mm (14.6 inches)
Top Speed and Technical Details of KTM450
- Power: 63 hp/47 kW @ 9500 rpm
- Torque: 49.5 Nm @ 7000 rpm
- Bore × Stroke: 95 × 63.4 mm
- Compression ratio: 12.75:1
- Top speed: 120 km/h (75 mph) limited by gearing
- Rake/Trail: 26.1° / 116 mm
Summary of KTM450
The KTM 450 SX-F is a high-performance motocross motorcycle featuring a lightweight chrome-moly steel frame with aluminum subframe, weighing approximately 100 kg.
- Its liquid-cooled 449.9cc SOHC engine delivers 63 hp through a 5-speed transmission with hydraulic DDS clutch.
- Distinguishing features include WP Xact suspension, orange-colored bodywork, and compact aluminum silencer.
- Post-2019 models received updated frames and bodywork, making parts non-interchangeable with earlier generations.
- Frequently replaced components include radiators, plastic bodywork, footpegs, levers, and suspension linkages.
- Engine numbers are located on the right side of the crankcase, while the VIN can be found on the steering head tube.
- Verify model year compatibility when purchasing replacement parts due to significant generational changes.
Start with the Full KTM 450 Model Name
KTM 450 is a model family rather than one interchangeable motorcycle. Suffixes such as SX-F, EXC-F and XC-F identify motorcycles that can use different frames, gearboxes, electrical systems, suspension and bodywork, with further changes between model years. Send the complete model designation, year, VIN, engine number and any stamped part number before relying on a visual match.
Condition Checks for Used KTM 450 Parts
Off-road components should be checked for more than surface appearance. Inspect radiators for distortion, wheels for damaged rims and hubs, suspension parts for worn mounting points, and frames or subframes for repairs. Electrical plugs, sensors and wiring should be identified clearly because mud, pressure washing and previous modifications can affect condition and make similar-looking components unsuitable.
Sydney KTM 450 Parts and Motorcycle Enquiries
Provide photographs of the complete bike and the required component, including its mounting points and connectors. If the motorcycle is non-running, include its Sydney suburb, whether it rolls, how it is stored and any access restrictions. These details help separate different KTM 450 variants and avoid an incorrect parts match.
See our KTM motorcycle parts in Sydney page for other KTM models.
