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Cross - Motocross · 2024

450 SX-F

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MotoLibrary Score
55 /100 Balanced
Power/Weight
0.61 hp/kg
Engine
450 ccm

2024 KTM 450 SX-F Technical Analysis & Specification Breakdown

Positioned in KTM's cross - motocross motorcycle lineup, the 2024 KTM 450 SX-F relies on a 449.9 cc (27.5 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 63 HP (46 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 140 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the 450 SX-F measures 102.6 kg (226 lbs) dry, translating to a power-to-weight ratio of 0.61 HP/kg (1.63 kg per horsepower). Rider ergonomics and chassis geometry center around a 958 mm (37.7 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,485 mm (58.5 in) wheelbase engineered for balanced agility and highway composure. The 7.2-liter (1.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's KTM archive, this model family spans 7 indexed model years from 2010 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
140 HP/L
Power-to-Weight
0.61 HP/kg (1.63 kg/HP)
Standover Height
958 mm (37.7 in)
Engine
Displacement 449.9 ccm (27.45 cubic inches)
Engine Type Single cylinder, four-stroke
Power 63.0 HP (46.0 kW))
Bore x Stroke 95.0 x 63.4 mm (3.7 x 2.5 inches)
Fuel System Injection
Fuel Control Single Overhead Cams (SOHC)
Ignition Keihin EMS
Cooling Liquid
Transmission
Gearbox 5-speed
Final Drive Chain (final drive)
Clutch Wet, DDS multi-disc clutch, Brembo hydraulics
Driveline 520, Non-sealed chain
Chassis
Frame Type Central double-cradle-type 25CrMo4 steel
Rake 26.1°
Front Suspension WP XACT-USD, Ø 48 mm
Front Travel 310 mm (12.2 inches)
Rear Suspension WP XACT Monoshock with linkage
Rear Travel 300 mm (11.8 inches)
Wheelbase 1485 mm (58.5 inches)
Ground Clearance 359 mm (14.1 inches)
Wheels & Brakes
Front Tyre 1.6-21
Rear Tyre 2.15-19
Front Brakes Single disc. Brake calipers on floating bearings
Front Brake Ø 260 mm (10.2 inches)
Rear Brakes Single disc. Brake calipers on floating bearings
Rear Brake Ø 220 mm (8.7 inches)
Wheels CNC machined hubs. Excel rims. Wire spoked.
Dimensions & Weight
Dry Weight 102.6 kg (226.2 pounds)
Power/Weight 0.6140 HP/kg
Seat Height 958 mm (37.7 inches) If adjustable, lowest setting.
Fuel Capacity 7.20 litres (1.90 US gallons)
Other
Starter Electric
Color Options Orange/white/grey
Electrical Lightweight 495 g 2Ah lithium-ion starter battery
More from KTM
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
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Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟡
Intermediate
Requires some riding experience.
🌲
Best For
Off-Road & Adventure
📏
Seat Height
95.8 cm / 37.7 in
⚖️
Handling
Very lightweight — easy to handle
100 ? 600 : hp > 50 ? 400 : 250; return Math.round(base + (this.km / 10000) * 150); }, get insuranceCost() { const hp = 63; return Math.round(hp > 100 ? 800 : hp > 50 ? 500 : 300); }, get total() { return this.fuelCost + this.maintenanceCost + this.insuranceCost; }, get monthly() { return Math.round(this.total / 12); } }">
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