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.
