| General |
|
Year
|
2021
|
2021
|
|
Manufacturer
|
Yamaha
|
Yamaha
|
|
Model Name
|
WR450F
|
WR450F
|
|
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 mm
|
97 mm
|
|
Stroke
|
60.8 mm
|
60.8 mm
|
|
Compression Ratio
|
13.0:1
|
13.0:1
|
|
Fuel System
|
Keihin 44 mm throttle body F.I.
|
Keihin 44 mm throttle body F.I.
|
|
Lubrication
|
Wet sump
|
Wet sump
|
|
Ignition
|
TCI
|
TCI
|
|
Starter
|
Electric
|
Electric
|
| Drivetrain |
|
Transmission
|
Constant mesh, 5-speed
|
Constant mesh, 5-speed
|
|
Final Drive
|
Chain
|
Chain
|
| Suspension |
|
Front Suspension
|
Fully adj. 48 mm inverted fork
|
Fully adj. 48 mm inverted fork
|
|
Rear Suspension
|
Fully adj. Link Monocross
|
Fully adj. Link Monocross
|
| Brakes |
|
Front braking system
|
270 mm floating disc / twin-piston caliper
|
270 mm floating disc / twin-piston caliper
|
|
Rear braking system
|
245 mm disc / single-piston caliper
|
245 mm disc / single-piston caliper
|
| Wheels & Tires |
|
Front Tire
|
80/100-21
|
80/100-21
|
|
Rear Tire
|
120/90-18
|
120/90-18
|
|
Front Wheel Travel
|
310 mm (12.2")
|
310 mm (12.2")
|
|
Rear Wheel Travel
|
317 mm (12.5")
|
317 mm (12.5")
|
| Dimensions |
|
Length
|
2,175 mm (85.6")
|
2,175 mm (85.6")
|
|
Width
|
825 mm (32.5")
|
825 mm (32.5")
|
|
Height
|
1,270 mm (50.0")
|
1,270 mm (50.0")
|
|
Wheelbase
|
1,480 mm (58.3")
|
1,480 mm (58.3")
|
|
Ground Clearance
|
320 mm (12.6")
|
320 mm (12.6")
|
|
Seat Height
|
955 mm (37.6")
|
955 mm (37.6")
|
| Capacities |
|
Fuel Capacity
|
7.9 litres (1.7 Imp. gal.)
|
7.9 litres (1.7 Imp. gal.)
|
| Weights |
|
Weight
|
Wet: 119 kg (262 lbs)
|
Wet: 119 kg (262 lbs)
|
| Color |
|
Colors
|
Yamaha Racing Blue
|
Yamaha Racing Blue
|
|
|
|
|
