| General |
|
Year
|
2023
|
2023
|
|
Manufacturer
|
Yamaha
|
Yamaha
|
|
Model Name
|
YZ450FX
|
YZ450FX
|
|
Trim Name
|
Base
|
Base
|
|
Generic Type (Primary)
|
Off-Road
|
Off-Road
|
| Engine |
|
Engine Type
|
DOHC, 4-valve (titanium), single
|
DOHC, 4-valve (titanium), single
|
|
Displacement
|
450 cc
|
450 cc
|
|
Cooling System
|
Liquid-cooled
|
Liquid-cooled
|
|
Bore
|
97.0
|
97.0
|
|
Stroke
|
60.8 mm
|
60.8 mm
|
|
Compression Ratio
|
13.0:1
|
13.0:1
|
|
Fuel System
|
Mikuni 44mm throttle body F.I.
|
Mikuni 44mm throttle body F.I.
|
|
Ignition
|
TCI / Electric
|
TCI / Electric
|
|
Lubrication
|
Wet sump
|
Wet sump
|
| Drivetrain |
|
Transmission
|
Constant mesh, 5-speed
|
Constant mesh, 5-speed
|
|
Final Drive
|
Chain
|
Chain
|
| Suspension |
|
Front Suspension
|
Fully adjustable 48 mm inverted KYB fork
|
Fully adjustable 48 mm inverted KYB fork
|
|
Rear Suspension
|
Fully adjustable linkage-type
|
Fully adjustable linkage-type
|
| Brakes |
|
Front braking system
|
270 mm, floating disc / twin-piston caliper
|
270 mm, floating disc / twin-piston caliper
|
|
Rear braking system
|
240 mm, disc / single-piston caliper
|
240 mm, disc / single-piston caliper
|
| Wheels & Tires |
|
Front Tire
|
80/100-21
|
80/100-21
|
|
Front Wheel Travel
|
310 mm (12.2 in.) wheel travel
|
310 mm (12.2 in.) wheel travel
|
|
Rear Tire
|
120/90-18
|
120/90-18
|
|
Rear Wheel Travel
|
318 mm (12.5 in.) wheel travel
|
318 mm (12.5 in.) wheel travel
|
| Dimensions |
|
Length
|
2,175 mm (85.6 in.)
|
2,175 mm (85.6 in.)
|
|
Width
|
825 mm (32.5 in.)
|
825 mm (32.5 in.)
|
|
Height
|
1,280 mm (50.4 in.)
|
1,280 mm (50.4 in.)
|
|
Wheelbase
|
1,480 mm (58.3 in.)
|
1,480 mm (58.3 in.)
|
|
Ground Clearance
|
320 mm (12.6 in.)
|
320 mm (12.6 in.)
|
|
Seat Height
|
955 mm (37.6 in.)
|
955 mm (37.6 in.)
|
| Capacities |
|
Fuel Capacity
|
8.2 litres (1.8 Imp. gal.)
|
8.2 litres (1.8 Imp. gal.)
|
| Weights |
|
Weight
|
115.2 kg (254 lb)
|
115.2 kg (254 lb)
|
| Color |
|
Colors
|
Yamaha Racing Blue
|
Yamaha Racing Blue
|
|
|
|
|
