Yamaha YZ450FX - 2020 Specifications and Reviews

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General information

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CategoryEnduro / offroad
ModelYamaha YZ450FX
Year2020
 
 

Engine and Transmission Specifications

DrivelineO-ring chain
ClutchWet multi-disc
Transmission typeChain   (final drive)
Gearbox5-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionTCI
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Keihin 44mm
Valves per Cylinder4
Bore x Stroke97.0 x 60.9 mm (3.8 x 2.4 inches)
Compression12.8:1
Engine detailsTitanium valves
Engine typeSingle cylinder, four-stroke
Capacity:449.7 ccm (27.44 cubic inches)

Brakes, suspension, Frame and wheels

WheelsDunlop® AT81F tyres
Rear brakesSingle disc. Hydraulic
Diameter270 mm (10.6 inches)
Front brakesSingle disc. Hydraulic
Rear tire120/80-18
Front tire80/100-21
Rear wheel travel318 mm (12.5 inches)
Rear SuspensionKYB® single shock; full adjustable
Front wheel travel310 mm (12.2 inches)
Front SuspensionKYB® spring-type fork with speed sensitive damping; fully adjustable
Trail117 mm (4.6 inches)
Rake (fork angle)27.2°
Frame typeAluminum Bilateral Beam frame
 
 

Physical measures and capacities

Fuel capacity8.33 litres (2.20 US gallons)
Wheelbase1481 mm (58.3 inches)
Ground clearance335 mm (13.2 inches)
Overall width826 mm (32.5 inches)
Overall length2174 mm (85.6 inches)
Overall height1290 mm (50.8 inches)
Seat height965 mm (38.0 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc116.1 kg (256.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Factory warranty30 Day Limited Factory Warranty
StarterElectric
Color optionsTeam Yamaha Blue

Performance Profile & Rider Fit

Best For

Track55%
City15%
Cornering70%
Daily Riding20%
Touring15%
Passenger5%

Rider Profile

Best ForBest suited to intermediate to expert off-road riders who are comfortable with a tall, light, aggressive cross-country race bike.
PurposeBuilt for closed-course cross-country and enduro-style off-road riding rather than street use or commuting.
Rider FitThe tall 37.6 in seat height and minimal weight-carrying comfort favor taller, fit riders confident standing on the pegs for extended periods.
CharacterA high-revving, race-derived thumper that rewards an aggressive, momentum-focused riding style with sharp handling and light overall mass.
Not Ideal ForNot a good fit for new riders, passengers, highway commuting, or anyone wanting plush comfort and long-range touring capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2020 Yamaha YZ450FX Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 965mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2020 Yamaha YZ450FX, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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