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2023 KTM 450SX F

2023 KTM 450SX F

The 2023 KTM 450 SX-F is the flagship motocross bike built for maximum power and performance. It delivers championship-winning speed with smooth control, making it one of the most dominant bikes on the track. Strong, lightweight, and packed with race-proven technology, it combines explosive power with refined handling. This is the bike riders choose when they want to push limits and compete at the highest level.
$14,999.00 NZD
$16,849.00 NZD $14,999.00 NZD
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The 2023 KTM 450 SX F delivers incredible performance thanks to its lightweight SOHC 449.9 cc engine, advanced Keihin EFI system, and optimised mass centralisation. The engine is tilted two degrees backward, lowering the front sprocket to enhance traction and stability under acceleration. Riders benefit from features like a Quickshifter for clutchless upshifts and Launch Control for explosive starts, making it one of the most powerful and responsive bikes in its class.

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Handling is where the 450 SX-F truly shines. It features a chromoly steel frame that improves stability, cornering precision, and rider feedback. The WP XACT suspension system includes a 48 mm air fork and a rear shock with linkage and hand-adjustable dual compression damping, all fully tool-free for easy setup. With improved ground clearance, re-engineered footpegs, and a stronger aluminum-polyamide subframe, the bike feels balanced and predictable across rough tracks and jump landings.

From a usability standpoint, KTM has refined every detail to make the 450 SX-F race-ready and rider-friendly. Selectable maps and traction control allow riders to adapt power delivery to different track conditions, while tool-free suspension tuning makes fine-tuning quick and simple. The bike also features easy air filter access via a no-tools side panel and a high-grip seat with slimmer bodywork, giving riders better movement and control. It’s a perfect blend of power, precision, and practicality, engineered for riders chasing podium performance.

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2023 KTM 450 SX-F — Product Specifications
Specification Detail
Engine
Type Single-cylinder, 4-stroke, SOHC
Displacement 449.9 cc
Fuel System Keihin EFI with 44 mm throttle body
Transmission 5-speed with Quickshifter (2nd–5th gear clutchless shifting)
Starter Electric starter
Chassis
Frame 25CrMo4 steel central double-cradle frame with forged shock mount
Subframe Hybrid aluminium-polyamide construction
Swingarm Cast aluminium with updated topology
Suspension
Front Suspension WP XACT 48 mm USD air fork, fully adjustable (tool-free)
Rear Suspension WP XACT monoshock with linkage, tool-free dual compression adjusters
Dimensions
Seat Height 958 mm
Ground Clearance 343 mm
Fuel Tank Capacity 7.2 L
Weight (without fuel) ≈ 102.6 kg
Wheels & Brakes
Front Wheel 21” aluminium rim
Rear Wheel 19” aluminium rim
Front Brake 260 mm disc with Brembo caliper
Rear Brake 220 mm disc with Brembo caliper
Electronics
Engine Maps Selectable via handlebar map switch
Traction Control On/off selectable via handlebar switch
Launch Control Integrated for improved starts