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Forward thinking

With its innovative reverse cylinder head as well as an ultra-compact chassis and sophisticated suspension, the latest YZ450F is ready to push your racing career to the next level.

Equipped with optimized valve timing and new camshafts, this MXGP-developed racer delivers a smooth and easy engine character that enables you to fully unleash its awesome power. A larger diameter 270mm front disc allows you to brake harder and later - while the new suspension settings and a refined chassis design give increased traction and feel.

Featuring the latest electronic launch control system for faster starting, the YZ450F is built to win. And take you one step closer to total control.


  • NEW - Electronic launch control system (LCS)
  • NEW - Refined engine smooth and controllable power
  • NEW - Refined chassis and suspension settings
  • NEW - Refined clutch and smoother shifting
  • NEW - Large diameter 270mm front brake
  • 450cc liquid-cooled DOHC 4-valve engine
  • Reverse cylinder head with front-facing inlet
  • Mass centralized design for agile handling
  • Aluminum bilateral-beam frame
  • Air-Oil-Separate (AOS) upside-down front forks
  • Linked-type Monocross suspension
  • MXGP-developed design




Engine type liquid-cooled, 4-stroke, DOHC, 4-valve, rear ward slanting single cylinder
Displacement 449,7cc
Compression ratio 12,5 : 1
Bore x stroke 97,0 mm x 60,8 mm
Ignition System Full Transistor
Starter system Kick
Transmission system Constant Mesh, 5-speed
Final transmission Chain
Lubrication Dry sump
Fuel tank capacity 6,2 litres
Oil capacity 1,2 litres
Front suspension system Telescopic forks
Rear suspension system Swingarm, (link suspension)
Front brake Hydraulic single disc, Ø 250 mm
Rear brake Hydraulic single disc, Ø 245 mm
Front tyre 80/100-21-51M
Rear tyre 110/90-19 62M
Length x Width x Height (mm) 2.191 x 825 x 1.311 mm
Seat height (mm) 999 mm
Wheel base (mm) 1.487 mm
Minimum ground clearance (mm) 383 mm