Compare Dirt Bikes

Pick any two bikes to see specs and photos side by side. Differences are highlighted. Blank = not yet verified for that year-model (we don’t guess).

Yamaha

2026 Yamaha YZ450F

Yamaha

2026 Yamaha YZ450FX

Class	450cc 4-stroke	450cc 4-stroke
Displacement	450cc	450cc
Bore × stroke	97 × 60.8 mm	97 × 60.9 mm
Cooling	—	—
Induction	Mikuni fuel injection, 44mm	Mikuni fuel injection, 44mm
Power valve	—	—
Starter	—	—
Transmission	5-speed	5-speed
Front suspension	KYB spring-type fork with speed sensitive damping; fully adjustable	KYB spring-type fork with speed sensitive damping; fully adjustable, 11.8-in travel
Front travel	12.2 in	11.8 in
Rear travel	11.6 in	12 in
Front brake	270mm	270mm
Rear brake	240mm	240mm
Front wheel	—	—
Rear wheel	—	—
Seat height	38 in	37.6 in
Wheelbase	58.1 in	57.9 in
Weight	243 lb (Wet weight*** includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories.)	251 lb (Wet weight*** includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories.)
Fuel capacity	1.6 gal	2.1 gal
MSRP	—	—

Highlighted (blue) values differ. Verified manufacturer data; see each bike’s page for sources. Torque/fluid specs are on the individual pages (service-manual only).