Yamaha YZ450F 2021 Motocross Bike

£7,999.00
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Tune in to victory.

The compact engine comes with a lightweight rearward slanted cylinder that maximises the performance of the high compression head, forged piston and aggressive camshaft profiles. And using the Power Tuner app on your smartphone you can make instant trackside mapping adjustments and tune the engine power characteristics to gain a real advantage in all riding conditions.

Its lightweight aluminium bilateral frame has been designed to give an idealised balance of rigidity for precise handling and agile cornering – while the industry-leading coil spring-type forks and linkage rear suspension deliver exceptional balance.

  • Ultra-compact 450cc engine: power with control
  • Light and compact rearward-slanted cylinder
  • Yamaha Power Tuner app for instant track-side tuning
  • Handlebar switch for easily adjustable mapping
  • Compact electric starter with ultra-light battery
  • Launch Control System for quicker, smoother starts
  • Advanced fuel injection system for optimum power
  • Angled radiators ensure effective engine cooling
  • Robust transmission for positive shifting
  • Compact mass-centralised wraparound exhaust
  • Lightweight aluminium frame for agile handling
  • Class-leading front and rear suspension systems

Engine

Engine type- liquid-cooled, 4-stroke, DOHC, 4-valves, rear ward slanting single cylinder
Displacement- 449cc
Bore x stroke- 97.0 mm x 60.8 mm
Compression ratio- 12.8 : 1
Lubrication system- Wet sump
Clutch type- Dual side grinded clutch plate
Fuel system- Fuel Injection
Ignition system- TCI
Starter system- Electric and kick
Transmission system- Constant Mesh, 5-speed
Final transmission- Chain

Chassis

Frame- Semi double cradle
Front suspension system- Upside-down telescopic fork
Rear suspension system- Swingarm, (Link type suspension)
Front travel- 310 mm
Rear travel- 317 mm
Caster angle- 26º 55
Trail- 120 mm
Front brake- Hydraulic single disc, Ø 270 mm
Rear brake- Hydraulic single disc, Ø 240 mm
Front tyre- 80/100-21 51M
Rear tyre- 110/90-19 62M

 

Dimensions

Overall length- 2,185 mm
Overall width- 825 mm
Overall height- 1,285 mm
Seat height- 965 mm
Wheel base- 1,485 mm
Minimum ground clearance- 330 mm
Wet weight (including full oil and fuel tank)- 112 kg
Fuel tank capacity- 6.2 litres
Oil tank capacity- 0.90 litres

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