These are the known mechanical and performance specifications for your 2020 Yamaha YZ450F.
Displacement449.0 ccm (27.40 cubic inches)
DetailsSingle cylinder, four-stroke
Bore/Stroke97.0 x 60.9 mm (3.8 x 2.4 inches)
FuelingInjection. Mikuni® fuel injection, 44mm
IgnitionTCI: Transistor Controlled Ignition
ClutchMultiplate wet clutch
Fuel Economy & Polution
Fuel Capacity6.06 litres (1.60 US gallons)
Frame TypeBilateral beam frame
Trail119 mm (4.7 inches)
Front SuspensionKYB Speed-Sensitive System, inverted fork: fully adjustable
Front Travel310 mm (12.2 inches)
Rear SuspensionKYB® single shock; fully adjustable
Rear Travel318 mm (12.5 inches)
SeatLong, two-tone, motocross-style seat
Seat Height965 mm (38.0 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1275 mm (50.2 inches)
Total Length2184 mm (86.0 inches)
Total Width826 mm (32.5 inches)
Ground Clearance330 mm (13.0 inches)
Wheelbase1486 mm (58.5 inches)
Wet Weight111.1 kg (245.0 pounds)
Wheels & Brakes
Front BrakesSingle disc. Hydraulic.
Front Brake Diameter270 mm (10.6 inches)
Rear BrakesSingle disc. Hydraulic.
Rear Brake Diameter240 mm (9.4 inches)
WheelsDunlop® MX33® tyres
It appears you're interested in specifications for the Yamaha YZ450F. This Cross / motocross model is powered by a Titanium-valves Single cylinder, four-stroke engine with 449.0 ccm (27.40 cubic inches) of actual displacement before 13.0:1 compression. Fueling is metered via Injection. Mikuni® fuel injection, 44mm allowing this machine to produce its horsepower and torque. According to our records engine heat of the Yamaha YZ450F is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 80/100-21 and the rear is 120/80-19 . The entire package is supported by the frame, Bilateral beam frame. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. Hydraulic. front brakes and Single disc. Hydraulic. rear brakes. The Yamaha YZ450F was launched in 2020, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.