| General |
|
Year
|
2021
|
2021
|
|
Manufacturer
|
Yamaha
|
Yamaha
|
|
Model Name
|
YZ450FX
|
YZ450FX
|
|
Trim Name
|
Base
|
Base
|
|
Generic Type (Primary)
|
Off-Road
|
Off-Road
|
| Engine |
|
Engine Type
|
DOHC 4-stroke; 4 titanium valves
|
DOHC 4-stroke; 4 titanium valves
|
|
Displacement
|
449cc
|
449cc
|
|
Cooling System
|
liquid-cooled
|
liquid-cooled
|
|
Bore
|
97.0mm
|
97.0mm
|
|
Stroke
|
60.9mm
|
60.9mm
|
|
Compression Ratio
|
13.0:1
|
13.0:1
|
|
Fuel System
|
Mikuni® fuel injection, 44mm
|
Mikuni® fuel injection, 44mm
|
| Drivetrain |
|
Transmission
|
5-speed; multiplate wet clutch
|
5-speed; multiplate wet clutch
|
|
Final Drive
|
Chain
|
Chain
|
| Suspension |
|
Front Suspension
|
KYB® spring-type fork with speed sensitive damping; fully adjustable
|
KYB® spring-type fork with speed sensitive damping; fully adjustable
|
|
Front Travel (in./cm.)
|
12.2-in
|
12.2-in
|
|
Rear Suspension
|
KYB® single shock; fully adjustable
|
KYB® single shock; fully adjustable
|
|
Rear Travel (in./cm.)
|
12.5-in
|
12.5-in
|
| Brakes |
|
Front braking system
|
Hydraulic disc, 270mm
|
Hydraulic disc, 270mm
|
|
Rear braking system
|
Hydraulic disc, 245mm
|
Hydraulic disc, 245mm
|
| Wheels & Tires |
|
Front Tire
|
80/100-21 Dunlop® MX3S®
|
80/100-21 Dunlop® MX3S®
|
|
Rear Tire
|
120/90-18 Dunlop® MX3S®
|
120/90-18 Dunlop® MX3S®
|
| Dimensions |
|
Overall Vehicle Size (LxWxH)
|
85.6 in x 32.5 in x 50.4 in
|
85.6 in x 32.5 in x 50.4 in
|
|
Seat Height
|
37.6 in
|
37.6 in
|
|
Wheelbase
|
58.3 in
|
58.3 in
|
|
Rake/trail
|
27° / 4.6 in
|
27° / 4.6 in
|
|
Ground Clearance
|
Maximum: 12.6 in
|
Maximum: 12.6 in
|
| Capacities |
|
Fuel Capacity
|
2.2 gal
|
2.2 gal
|
| Weights |
|
Weight
|
Wet: 254 lb
|
Wet: 254 lb
|
| Color |
|
Colors
|
Team Yamaha Blue
|
Team Yamaha Blue
|
| Warranty |
|
Warranty
|
30 Day (Limited Factory Warranty)
|
30 Day (Limited Factory Warranty)
|
|
|
|
|
