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2022 Honda CRF450RX Dirt Motorcycle Review Specs Price

When things get tough, nothing helps you keep going like a 2022 Honda CRF450RX Dirt Motorcycle. The CRF450RX has many of the same innovations as our 450R moto crosser but is tuned for enduro racing success. With its little Unicam® engine, versatility in power is at your fingertips. Honda’s Selectable Torque Control is only one example of a technological advancement that may be used to improve traction in a variety of settings. The lightweight chassis, 18-inch rear tire, hydraulic clutch, and custom suspension settings allow you to conquer any terrain. Due to Honda’s legendary durability, this bike can take a beating and keep racing. As a consequence, breaking through the resistance resembles creating new train lines.

2022 Honda CRF450RX Dirt Motorcycle

In national championship events like the GNCC, WORCS, and NGPC, SLR Honda and JCR Honda proved that the CRF450RX is up to the challenge of closed-course off-road racing. It is based on the motocross-oriented CRF450R, but it includes off-road-specific features like a specialized ECU and suspension settings (revised for 2022 to enhance ride quality and balance), an 18-inch rear tire, an aluminum side stand, handguards, and a 2.1-gallon fuel tank. The finished product is a racing vehicle that follows arrows and ribbons across the country.

2022 Honda CRF450RX Dirt Motorcycle – Features and Specs

Light, Narrower Frame

A solid chassis is a foundation for responsive handling. The CRF450RX was designed to have a smaller, lighter, and more responsive chassis due to its reduced lateral rigidity. Consequently, the bike may enter, go through, and exit corners with increased velocity.

Battery Box

A better center of gravity may be achieved by placing the battery box lower in the vehicle. Because it is easier to maintain and watertight, there are fewer worries when racing in wet conditions.

Front Suspension

The longer the front suspension stroke, the more control the rider has and the more comfortable the ride. Each fork leg has an axle retaining device at the base to boost rigidity, precision, and performance across the board.

2022 Honda CRF450RX Dirt Motorcycle

Triple Clamps

The CRF450RX has flawless construction. We used upper and lower triple clamps to connect the fork legs’ reinforced axle fixture with the bike’s retuned frame and swing arm’s improved lateral rigidity. They balance each other out, improving overall stiffness, responsiveness, and turning performance.

Rear Suspension

The chassis’ settings and the rear shock’s shape have been optimized to work together. The valving of the shocks is designed to reset faster, allowing for faster responses. Riding in Enduro conditions necessitates, of course, that the RX’s shocks be adjusted accordingly.

Showa Spring Fork

The traditional spring construction and model-specific calibration of the 49mm Showa® fork enhance the CRF450RX’s front suspension’s precision, handling, and feel.


The swing arm on the CRF450RX is built using a unique technique that fine-tunes the flex to complement the chassis and offer you better rear traction and cornering accuracy.

Exhaust Pipe

The single muffler exhaust of a motorbike is typically positioned closer to the bike’s center of gravity to improve handling and handling stability.

Single-Muffler Exhaust

We switched to a pressed-alloy construction last year, which allowed us to rebuild the muffler for improved rider ergonomics and lower overall weight. How much less is it? The weight is much more than 2.5 pounds!

2022 Honda CRF450RX Dirt Motorcycle

260mm Front Brake

CRF450RX’s enormous front brake disc measures an incredible 260 millimeters in diameter. Excellent braking feel and a gradually easing pattern are yours to enjoy. Brake disc guards, both front and rear, are provided.

Engine Mode Select Button

Pushing this button, conveniently located on the handlebars, changes how the engine delivers its power. Select between Standard, Smooth, or Aggressive, depending on the track’s state.

Resin Fuel Tank

Thanks to its 2.1-gallon gasoline tank, many riders can complete a three-hour Enduro with only a single fuel stop.

Compact Fuel Pump

When it comes to streamlining and downsizing, our engineers won’t overlook the smallest of details. As a result, they cut down from six to four fasteners the previous year.

HRC Launch Control

You can get a huge head start into the first turn on the CRF450RX if you hit the mode button, hold the throttle open, and release the clutch. This particular ECU software does the rest. It transforms your motorcycle into a tool for doing holeshots!

2022 Honda CRF450RX Dirt Motorcycle

Light Overall Weight

A lightweight enduro racer is often more advantageous. It is why minimizing the CRF450X’s overall footprint has been a priority for our R&D team. You’ll feel the benefits wherever you go, from acceleration to suspension action, maybe most significantly, the conclusion of the day.

Rear Brake Pads

Brakes are not only used to stop the bike but also to position the bike for maneuvers like turns and leaps. That’s why we think long and hard before replacing something like brake pads. They’re built to last longer and provide greater stopping power so that you can win more often.

Airbox and Filter

There was an intention to boost torque while designing the air filter and air box shape. The airbox may be accessed via a hatch on the left side of the new license plate. Since there is no longer a rubber gasket connecting the filter to the intake boot, cleaning and maintaining the filter is much simpler and faster.

Electric Start

Kick-starting? In this case, no. Maybe if you’re racing in the vintage division, to reduce the weight of the CRF450RX, our engineers have eliminated the Kickstarter. Since modern lithium-ion batteries and electric starters are compact, lightweight, and dependable, installing them in a bike like this is a win-win. Also, the CRF450RX’s primary focus is on victorious performance.

Switch Assembly

The controls used to be the shifter, clutch, and brakes on your bike. The power settings may now be tailored to your needs, and you can get help getting started.

2022 Honda CRF450RX Dirt Motorcycle

Dunlop Geomax AT81 Tires

Dunlop Geomax tires for the CRF450RX are purpose-built off-road models. AT81 tire sizes for the front and rear are 90/90-21 and 120/90-18. Yes, an 18-inch wheel may be found on the back of the CRF450RX.

449cc Unicam Engine

Honda’s Unicam® cylinder heads combine the best aspects of both single- and double-overhead-cam designs. A smaller, lighter engine with a narrower included valve angle may be achieved by switching to a scheme that employs a single overhead camshaft. The flattening of the chamber facilitates a high compression ratio and a better spread of the ignited flame. The camshaft is now housed lower in the cylinder head, making for a more compact and lighter engine.

Decompression System

The one and only way to see it is to take apart the engine, but you may see it in rapid action on the racetrack. Last year, our experts reworked the auto decompression hardware and moved it from its right side to the left side of the cam. The upshot is improved rideability and less stalling at low RPMs (just try riding deep into a bend without downshifting).

Cylinder Head

Power is maximized, and exhaust efficiency is maximized from 5000 rpm onward, thanks to the combination of the oval-shaped central exhaust port and the single-muffler exhaust.

Titanium intake valves

Smaller valve springs and lighter titanium intake valves reduce reciprocating mass, lowering the engine’s overall height.

Fuel Injector Body Position

Changing the fuel injector’s angle from 30 to 60 degrees allows gasoline to be sprayed back into the throttle butterfly. The engine’s output and torque are improved after being fed gasoline that has been chilled and densified. The CRF450RX is distinguished from its rivals by these minute details.

13.5:1 Compression Ratio

The pinnacle of Honda’s engineering: CRF450RX cylinder heads have a large squish area and an outstanding compression ratio of 13.5:1 for improved fuel efficiency and output.

Skid Plate

A factory skid plate is a small solution for racers seeking protection for their vehicle’s undercarriage and engine.

Slim Bodywork

A bike with a narrow frame gives you more freedom of movement and is easier to handle in tight spaces.

Factory Handguards

The fully integrated handguards on your new bike are finished in the same color as the rest of the bike, attach to the pivot points of the control levers, and even include ventilation holes.

Renthal “Fatbar”

The aluminum Renthal Fatbar is curved, superior to the straight Honda “CR” bar. It raises the standard for excellence, so naturally, you’ll find it appealing.

Seat Accessibility

By using some creative thinking, we were able to design a seat for the CRF450RX. The mounting bolts were flipped around, and the tongue was shifted from the front to the rear. What did it all mean? Your new CRF450RX has made it easier to take the seat out for cleaning and put it back in again.

Flat Seat/Tank Junction

The CRF450RX has a titanium gasoline tank flush with the bike’s flat seat/tank junction. The bike is easier to maneuver since it is more comfortable moving forward and backward.

2022 Honda CRF450RX Dirt Motorcycle – Price

The new 2022 Honda CRF450RX Dirt Motorcycle is available at $9,899 only.

2022 Honda CRF450RX Dirt Motorcycle

2022 Honda CRF450RX Dirt Motorcycle – Technical Specifications


Type 449.8cc liquid-cooled 10º single-cylinder four-stroke
Valve Train Unicam® OHC, four-valve; 38 mm intake, steel; 31 mm exhaust, steel
Bore x Stroke 96.0 mm x 62.1 mm
Compression Ratio 13.5:1
Induction Programmed fuel-injection system (PGM-FI); 46 mm throttle bore
Ignition Full transistorized
Starter Push-button electric starter
Transmission Constant-mesh 5-speed; manual
Clutch Multiplate wet, hydraulically actuated (6 springs, 8 plates)
Final Drive #520 sealed chain; 13T/50T


Front Suspension 49mm of fully adjustable and leading-axle inverted telescopic Showa coil-spring fork with 12.2 inches travel
Rear Suspension Pro-Link system; fully adjustable Showa single shock including 12.3 in. travel


Front 2-piston caliper (30mm, 27mm) hydraulic; solo 260mm disc
Rear 1-piston caliper hydraulic; single 240 mm disc


Front Dunlop Geomax AT81 90/90-21 w/ tube
Rear Dunlop Geomax AT81 120/90-18 w/ tube


Rake (Caster Angle) 27°7’
Trail 114 mm (4.48 in.)
Length 85.9 in.
Width 33.0 in.
Height 50.5 in.
Ground Clearance 13.2 in.
Seat Height 38 in.
Wheelbase 58.3 in.
Fuel Capacity 2.1 gal.
Color Red
Curb Weight 251 lbs.

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