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Red

Engine Type

450cc liquid-cooled single-cylinder four-stroke

Transmission

Close-ratio five-speed

Front Suspension

49mm inverted Showa® fork; 12.2-inch travel

Rear Suspension

Pro-Link Showa® single shock; 12.1-inch travel

Seat Height

37.7 inches

Curb Weight

256 pounds (ready to ride)

Engine

Engine Type	450cc liquid-cooled single-cylinder four-stroke
Bore And Stroke	96.0mm x 62.1mm
Compression Ratio	13.5:1
Valve Train	Unicam SOHC; four valves per cylinder
Induction	Programmed Fuel Injection (PGM-FI); 44mm downdraft throttle body

Drive Train

Transmission	Close-ratio five-speed
Final Drive	#520 Chain; 13T/50T

Chassis Suspension Brakes

Front Suspension	49mm inverted Showa® fork; 12.2-inch travel
Rear Suspension	Pro-Link Showa® single shock; 12.1-inch travel
Front Brake	Single 260mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	Dunlop Geomax AT81; 90/90-21
Rear Tire	Dunlop Geomax AT81;120/90-18

Dimensions

Rake	27.5°
Wheelbase	58.2 inches
Trail	4.6 inches
Seat Height	37.7 inches
Ground Clearance	13.1 inches
Fuel Capacity	2.1 gallons
Curb Weight	256 pounds (ready to ride)

Other

Available Colors	Red
Model ID	CRF450RX

Download Specs

Woods warrior

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R3 contingency program

14 AMA 450 Pro Motocross Championships

17 AMA 250 Pro Motocross Championships

Up your enduro game

450cc Unicam® engine

Honda's Unicam® cylinder heads combine single- and double-overhead-cam designs to create a compact engine with a narrow valve angle. This allows for a higher compression ratio and lower center of gravity.

Up your enduro game

18-inch rear wheel

Designed for enduro use, the 18-inch rear wheel and tire combo provides better bump absorption and a broader contact patch to smooth out the roots, ruts, and rocks that come with off-road riding.

Up your enduro game

Hydraulic clutch

This bike has a hydraulically actuated Nissin clutch, which is the same design as our Grand Prix MX machines and has a ten percent lighter pull. Plus, you won't need to make clutch-cable adjustments, even during long events.

Up your enduro game

Larger fuel tank

We gave the RX a bigger, 2.1-gallon resin fuel tank. This will allow for fewer fuel stops, which can save valuable time over the course of a longer enduro.

Own the off-road

View all Features

Showa® spring fork

The 49mm Showa^® fork is specially tuned for off-road racing and features a conventional spring design that helps increase front-suspension precision, handling, and feel.

260mm front brake

The large front brake disc measures a whopping 260mm. It offers great brake feel and a pattern that reduces weight, while the caliper is designed to reduce lever fade. A front brake-disc guard is also part of the package.

Airbox and filter

The air filter and airbox shape improve torque delivery. The filter can be accessed through the left number plate, and the intake boot's filter interface has no rubber gasket, making it easier and less messy to clean and service.

Honda Selectable Torque Control (HSTC)

Changing terrain requires changing power characteristics. No worries: This bike features our Honda Selectable Torque Control (HSTC). Depending on the available traction, you can choose from one of three settings to dial your bike in perfectly.

Engine mode selection button

Customize your engine's power delivery on the fly with the convenient handlebar-mounted button, allowing you to effortlessly switch between Standard, Smooth, and Aggressive modes to suit varying track conditions or rider preference.

Race styling

Like our factory racebikes, the CRF logo is stacked and features our "in-mold" graphics, designed to remain durable after repeated track sessions and cleaning.

Flat seat/tank junction

It features a smooth seat/tank junction. The superior ergonomics make moving forward and back on the bike easier, increasing your control.

Electric starter

To keep the bike light, our engineers use an electric starter with a lithium-ion battery.

HRC launch control

This special ECU program allows you to select a mode, hold the throttle open, release the clutch, and let the bike do the rest. Trust us when we say it will give you a significant advantage as you head into the first turn.