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For 2020, Yamaha has worked hard on its big cross-country machine. The all-new 2020 YZ 450 F is lighter, more powerful and more manoeuvrable. Nothing less than the most competitive 450cc ever produced by the brand
The whole bike has been completely overhauled. The engineering team has managed to achieve significant weight savings, but also power gains and improved handling performance, for the vintage YZ 450 F of 2020.
New 450cc engine, more powerful and more compact
Already renowned for its power, the engine of the YZ 450 F has been completely redesigned for 2020 to offer even more generous performance and more obvious to control. The new engine is intended to be more compact and lighter, while new technical choices improve the mass centralization of the motorcycle, in order to improve its handling and stability..
Featuring a high efficiency reverse cylinder head, durable high compression piston and aggressive cam profiles, the new compact 450cc engine offers the best possible balance of performance and controllability.
New cylinder tilted backwards
One of the main engine upgrades for 2020 is its new rear-tilted cylinder, which is both lighter and more compact. This change improves the centering of the masses, which greatly contributes to the good handling of the YZ 450 F..
The new tilt back cylinder features a high compression piston and high efficiency reverse cylinder head with straight intake. This design strikes the perfect balance between power and maneuverability.
Yamaha GYTR Power Tuner
The Yamaha YZ 450 F was the first connected cross bike, allowing adjustments using a smartphone.
By downloading the free Power Tuner app for iOS or Android devices, YZ 450 F riders and mechanics can easily adjust the air / fuel mixture and spark advance to match the bike to individual terrain and riding. . With this feature, the machine can be set instantly on the track. Thus its pilot can face all types of terrain and all weather conditions..
In addition to its mapping functions, the Power Tuner application records and monitors operating parameters, in addition to a diagnostic function, engine run time, becoming a valuable part of any pilot’s toolbox..
Adjustable handlebar mounted mapping switch
After programming various maps via the Power Tuner, the pilot can select the one of his choice on the handlebars. This option allows instant changes in mapping depending on driving conditions: it is thus possible to switch from aggressive engine behavior for a dry and fast track to one that is smoother and linear, better suited to greasy terrain..
Compact electric starter
The new 450 engine is equipped with a compact, lightweight and very practical electric starter. This saves precious seconds when restarting a race. Powered by a high-capacity four-cell lithium-ion battery, the YZ 450 F 2020 maintains minimum weight.
Departure control system
The YZ 450 F’s Departure Control System (LCS) optimizes engine power and performance in the first few seconds of the race, when the gate is lowering. By contributing to a more efficient transmission of power, the LCS offers greater control precision and better traction at the start, which gives a crucial advantage in grabbing the holeshot..
High-tech injection system
The new compact engine has a Mikuni fuel injection system® Featuring a lightweight and ultra-compact 44mm injector body. A high-pressure electric pump guarantees optimum atomization of the air / fuel mixture admitted from the front for excellent operating performance.
High efficiency angled radiators
In order to ensure the efficient operation of this new, more powerful engine, Yamaha engineers repositioned the radiators to provide more incoming air flow. This air flow keeps the 450 cm3 at an optimum temperature for a regular power from the start to the end of the session..
Robust 5-speed gearbox
The 5-speed gearbox of the YZ 450 F model supports the most frank gear changes. The gears are characterized by a large contact surface to distribute the load, and a new clutch ensuring maximum longevity, while the selector drum and forks, offer better feel and a shorter stroke when changing of speed.
Compact exhaust for better mass centralization
The YZ 450 F is characterized by a centralized mass design, in which the main components are located as close as possible to the center of gravity of the motorcycle. The wraparound exhaust that winds around the cylinder is one example. This design also allows a muffler to be installed further forward and closer to the center of the bike..
Associated with the new cylinder tilted backwards, it centralizes the mass, which contributes considerably to the handling and dynamism of the YZ 450 F.
Lighter aluminum frame for sharper handling
For 2020, the compact aluminum chassis has been carefully redesigned to accommodate a new, more powerful engine..
To reduce weight and optimize the performance of the bike, the new bilateral beam frame features slimmed-down stiffeners, thicker side members and new engine mounts. These significant changes allow greater stability and ultimately better lap times..
Compact body and saddle design
The compact fuel tank, radiator vents, as well as the narrow seat of the YZ 450 F not only improve the rider’s mobility and good knee support, but they also accentuate the feeling of lightness and maneuverability of the motorcycle. to give the pilot a psychological advantage even before departure. Good ergonomics that allow the rider to transfer their weight quickly and easily, improve control grip and reduce fatigue.
High-tech suspensions
The YZ 450 F model is equipped with a KYB fork® fully adjustable coil springs, the ultimate in off-road suspension. Equipped with a damping system offering an ideal compromise between rigidity and shock absorption, this fork offers ad hoc performance.
The rear linkage suspension and the KYB shock absorber® fully adjustable allow optimal traction as well as suitable low and high speed operation.
Lighter rims
A new design allows the lightening of the blue anodized rims: this design ensures a lower unsprung weight and high resistance over time.
Optimized brakes
A stiffer front caliper, new pads and a 270mm front disc provide exceptional braking. New lightweight rear caliper and disc reduce unsprung weight.
Strengths of the YZ 450 F:
– New ultra-compact 450cc engine, increased power and full control
– Lighter and more compact rear tilted cylinder
– Centralized mass design
– Power Tuner application for smartphone to adjust settings in the field
– Handlebar switch for easily switchable mapping
– Compact electric starter and ultra-light battery
– Departure Control System (LCS) optimizes engine power for faster starts
– Advanced injection system for optimum power
– Angled radiators for efficient engine cooling
– Robust transmission and clutch for safe shifting
– Compact and centralized wrap-around exhaust
– Repositioned silencer
– Aluminum bilateral beam frame
– Compact shell and saddle design for great ergonomics
– KYB inverted telescopic fork® coil spring with speed sensitive damping
– Link rear suspension, KYB lightweight rear shock®
– Lightweight wheels and anodized blue rims
– 270mm front disc, optimized pad material and caliper
– New rear disc and more compact caliper
– Handlebar position adjustable in 4 positions
– Integrated graphics for greater durability
– Aluminum variable section handlebars
– Quick-adjust clutch lever
– Wider and lighter footrests
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Replaces
YZ 450 F 2019
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The technical aspect
Yamaha YZ 450 F 2020
- Frame
- Frame: Semi double aluminum cradle
- Tank: 6.1 liters
- Seat height: 980 mm
- Length: 2185 mm
- Width: 825 mm
- Height: 1,285 mm
- Wheelbase: 1,485 mm
- Weight in running order: 111 kg
- Train before
- Telehydraulic inverted fork Ø nc, deb: 310 mm
- 1 disc Ø 270 mm, 2 piston caliper
- Front wheel:
80/100
– 21
- Transmission
- 5-speed gearbox
- Secondary chain transmission
- Rear axle
- Mono-shock, deb: 317 mm
- 1 disc Ø 245 mm, 1 piston caliper
- Rear wheel:
120/80
– 19
- Motor
- Single cylinder
in line
, 4 stroke - Cooling: by water
- Injection Ø 44 mm
- 2 ACT
- 4 valves
-
449.70 cc
(97 x 60.8 mm) -
≈ 55
ch - Compression: 12.8: 1
- Crit’air:
Detached pieces
exhaust
motor
fluid
electricity
filtration
braking
chain kit
Competitors
2020 KTM 450 SX-F
2020 Honda CRF 450 R
Gallery
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