2025 KTM 450 SX-F

When you see the 2025 KTM 450 SX-F roll off the trailer, you know it means business. With 5 AMA 450 Supercross titles in the last 7 seasons, the 2025 KTM 450 SX-F rolls up to the starting gate already armed with the learnings of past championships - only this time, it's freshly loaded with an all-new arsenal of weaponry.

ENGINE

• TRANSMISSION: 5-speed
• STARTER: Electric starter
• STROKE 63.4 mm
• BORE 95 mm
• CLUTCH Wet, DDS multi-disc clutch, Brembo hydraulics
• COMPRESSION RATIO    13.1
• DISPLACEMENT 449.9 cm³
• EMS Keihin EMS
• DESIGN 1-cylinder, 4-stroke engine
• FUEL-MIXTURE GENERATION Keihin EFI, throttle body 44 mm

CHASSIS

• WEIGHT (WITHOUT FUEL)102.6 kg
• TANK CAPACITY (APPROX.)7.2 l
• WHEELBASE 1493 mm
• FRONT BRAKE DISC DIAMETER 260 mm
• REAR BRAKE DISC DIAMETER 220 mm
• FRONT BRAKE Disc brake
• REAR BRAKE Disc brake
• CHAIN 520, Non-sealed
• FRAME DESIGN Central double-cradle-type 25CrMo4 steel
• FRONT SUSPENSION WP XACT-USD (AER), Ø 48 mm
• GROUND CLEARANCE 343 mm
• HANDLE BAR Neken, aluminium Ø 28/22 mm
• REAR SUSPENSION WP XACT Monoshock with linkage
• SEAT HEIGHT 958 mm
• SILENCER Aluminium
• STEERING HEAD ANGLE 63.9 °
• REAR SUBFRAME DESIGN Aluminum-reinforced polyamide
• SUSPENSION TRAVEL (FRONT) 310 mm
• SUSPENSION TRAVEL (REAR) 300 mm
• WHEELS Spoked wheels with aluminium rims