2023 Honda CRF450RX Technical Info


The 2023 Honda CRF450RX appears similar to final 12 months’s mannequin, with solely a contact extra blue and a revised HRC shroud brand to distinguish between them to these with eye. Underneath the hood, nonetheless, there are various revisions to each the 2023 Honda CRF450R and, correspondingly, the CRF450RX.

Updates to each the body and engine go largely unnoticed till spending a while with the brand new machine. A 44mm throttle physique replaces the 46mm meeting discovered on the 2021 and 2022 fashions. New porting and a redesigned cam profile improve rideability. Even the engine hanger materials was modified from aluminum to metal for improved traction and really feel.

On this article we’ll dive into among the elements and items that make the CRF450RX so versatile for closed-course off-road racing.

Associated: 2023 Honda Trailbikes First Look

Visually stunning, the CRF450RX is visibly unique compared to its CRF450R brethren with the addition of a 2.1-gallon fuel tank, 18-inch rear wheel, red hand guards, and factory-installed kickstand.

Visually gorgeous, the CRF450RX is visibly distinctive in comparison with its CRF450R brethren with the addition of a 2.1-gallon gasoline tank, 18-inch rear wheel, purple hand guards, and factory-installed kickstand. (Mark Kariya/)

Lurking deeper within the potent Honda, CRF450RX changes include dedicated ECU and suspension settings tailored to off-road conditions. The same hydraulic clutch is utilized on both the CRF450R and CRF450RX, whereas the CRF450X and CRF450RL are both cable actuated.

Lurking deeper throughout the potent Honda, CRF450RX modifications embrace devoted ECU and suspension settings tailor-made to off-road circumstances. The identical hydraulic clutch is utilized on each the CRF450R and CRF450RX, whereas the CRF450X and CRF450RL are each cable actuated. (Mark Kariya/)

The 2.1-gallon resin fuel tank is sleek for its capacity, while the red/white/blue accents on the radiator shrouds look clean and factory. You can also catch a glimpse of the red/blue/green handlebar-mounted electronics switch here.

The two.1-gallon resin gasoline tank is modern for its capability, whereas the purple/white/blue accents on the radiator shrouds look clear and manufacturing unit. You can too catch a glimpse of the purple/blue/inexperienced handlebar-mounted electronics change right here. (Mark Kariya/)

Associated: 2021 Honda CRF450RX Dyno Check

The left-side-mounted electronics switch performs a variety of functions. The larger red button is the kill switch. Honda’s blue Engine Mode Select Button (EMSB) is used to set the map for your preferred engine characteristics. The green button controls the Honda Selectable Torque Control (HSTC). Once running, pulling the clutch in and pushing the start button on the right accesses the HRC Launch Control functions… Got all that?

The left-side-mounted electronics change performs a wide range of features. The bigger purple button is the kill change. Honda’s blue Engine Mode Choose Button (EMSB) is used to set the map to your most well-liked engine traits. The inexperienced button controls the Honda Selectable Torque Management (HSTC). As soon as working, pulling the clutch in and pushing the beginning button on the correct accesses the HRC Launch Management features… Received all that? (Mark Kariya/)

A quick tip: While stock bikes rarely come with proper safety wire as photographed, it’s always a good idea to wire up traditional glue-on grips.

A fast tip: Whereas inventory bikes hardly ever include correct security wire as photographed, it’s all the time a good suggestion to wire up conventional glue-on grips. (Mark Kariya/)

Honda’s standard-equipment hand guards work quite well. Utilizing the clutch and front brake lever bolts, no handlebar space is impacted. If any CRF owners who run Renthal Twinwall handlebars are interested in saving precious bar space, the RX guards and accompanying bolt hardware fit right on the CRF250R and CRF450R models as well.

Honda’s standard-equipment hand guards work fairly effectively. Using the clutch and entrance brake lever bolts, no handlebar house is impacted. If any CRF homeowners who run Renthal Twinwall handlebars are considering saving valuable bar house, the RX guards and accompanying bolt {hardware} match proper on the CRF250R and CRF450R fashions as effectively. (Mark Kariya/)

Associated: 2022 Honda CRF250RX Evaluation

New year, new model tag. For 2023, frame rigidity has been optimized by increasing the thickness of the aluminum material in key places, from 4mm to 6mm. Both the upper shock mount and material at the joint where the twin horizontal braces meet the downtube have been beefed up.

New 12 months, new mannequin tag. For 2023, body rigidity has been optimized by growing the thickness of the aluminum materials in key locations, from 4mm to 6mm. Each the higher shock mount and materials on the joint the place the dual horizontal braces meet the downtube have been beefed up. (Mark Kariya/)

Steel engine hangers replace the previous models’ aluminum counterparts. The yellow choke knob doubles as the idle adjustment screw: Counterclockwise adjustment turns the idle up, clockwise drops the revs and lowers the idle. The battery is tucked neatly behind the black CRF logo’d plastic cover as well.

Metal engine hangers change the earlier fashions’ aluminum counterparts. The yellow choke knob doubles because the idle adjustment screw: Counterclockwise adjustment turns the idle up, clockwise drops the revs and lowers the idle. The battery is tucked neatly behind the black CRF brand’d plastic cowl as effectively. (Mark Kariya/)

Proper front brake disc protection, D.I.D DirtStar rims, and Dunlop Geomax AT81 tires on the 2023 Honda CRF450RX. The 4.8 Nm fork springs and RX-specific settings make for a more compliant ride over the motocross-focused CRF450R.

Correct entrance brake disc safety, D.I.D DirtStar rims, and Dunlop Geomax AT81 tires on the 2023 Honda CRF450RX. The 4.8 Nm fork springs and RX-specific settings make for a extra compliant journey over the motocross-focused CRF450R. (Mark Kariya/)

Associated: Off-Highway Racebikes—Cole Martinez’s 2022 Honda CRF450RX

The 50 Nm shock spring and settings are much lighter than the standard CRF450R baselines. Even factory Showa technicians mark baseline suspension settings with a Sharpie. #LearnFromThePros

The 50 Nm shock spring and settings are a lot lighter than the usual CRF450R baselines. Even manufacturing unit Showa technicians mark baseline suspension settings with a Sharpie. #LearnFromThePros (Mark Kariya/)

A Renthal Fatbar 839-bend handlebar graces the CRF450RX and multiple bar mount locations provide 26mm of cockpit adjustment to accommodate riders of all sizes. Interesting to note the standard fork height placement: Running the fork flush yields more stability, whereas closer to 5mm makes the RX even more nimble. This middle setting worked well for the tight and technical conditions we encountered at Honda’s off-road introduction.

A Renthal Fatbar 839-bend handlebar graces the CRF450RX and a number of bar mount areas present 26mm of cockpit adjustment to accommodate riders of all sizes. Attention-grabbing to notice the usual fork top placement: Operating the fork flush yields extra stability, whereas nearer to 5mm makes the RX much more nimble. This center setting labored effectively for the tight and technical circumstances we encountered at Honda’s off-road introduction. (Mark Kariya/)

Right-side beauty shot. The aluminum muffler is quieter due to a redesigned inner pipe (core), and a change of material (A6061-T6) to the muffler body increases strength over the 2021 and 2022 model design.

Proper-side magnificence shot. The aluminum muffler is quieter resulting from a redesigned inside pipe (core), and a change of fabric (A6061-T6) to the muffler physique will increase power over the 2021 and 2022 mannequin design. (Mark Kariya/)

Associated: 2022 Honda CRF250RX Dyno Check

Close-up of the redesigned, more durable muffler and sleek red Honda bodywork.

Shut-up of the redesigned, extra sturdy muffler and modern purple Honda bodywork. (Mark Kariya/)

Most Honda dirt bike clutch covers don’t look this clean for long. Also, the externally visible engine oil sight glass is a marked improvement over dipstick designs of old.

Most Honda grime bike clutch covers don’t look this clear for lengthy. Additionally, the externally seen engine oil sight glass is a marked enchancment over dipstick designs of outdated. (Mark Kariya/)

A 50-tooth rear sprocket comes standard on the CRF450RX, whereas the CRF450R gets spec’d with a 49-tooth. A common modification is to run longer chain/taller gearing combos for more length and chassis stability. The standard axle position is quite forward, especially compared to that of the CRF450X.

A 50-tooth rear sprocket comes normal on the CRF450RX, whereas the CRF450R will get spec’d with a 49-tooth. A standard modification is to run longer chain/taller gearing combos for extra size and chassis stability. The usual axle place is sort of ahead, particularly in comparison with that of the CRF450X. (Mark Kariya/)

Honda’s CRF450RX uses the same powerful front brake as the CRF450R. The 30mm/27mm piston design was a works-bike exclusive only a few years ago.

Honda’s CRF450RX makes use of the identical highly effective entrance brake because the CRF450R. The 30mm/27mm piston design was a works-bike unique only some years in the past. (Mark Kariya/)

A 260mm front brake rotor really stops the lightweight CRF450RX in a hurry. Honda has always had great brakes, with solid modulation and an accurate feel. 2023 brings more of the same for potential Red Riders.

A 260mm entrance brake rotor actually stops the light-weight CRF450RX in a rush. Honda has all the time had nice brakes, with strong modulation and an correct really feel. 2023 brings extra of the identical for potential Crimson Riders. (Mark Kariya/)

This 240mm rear rotor must’ve had some time on it before photos?! Only thing missing from front to back off-road protection is a plastic rear rotor guard. Thankfully, the mounting tabs to install one remain on the rear brake hanger, and previous units fit right on with the two-bolt design.

This 240mm rear rotor should’ve had a while on it earlier than photographs?! Solely factor lacking from entrance to again off-road safety is a plastic rear rotor guard. Fortunately, the mounting tabs to put in one stay on the rear brake hanger, and former models match proper on with the two-bolt design. (Mark Kariya/)

A proper kickstand makes the CRF450RX off-road ready. For racers needing to remove it for varying reasons, the CRF450R footpeg bracket is a direct fit. Both bikes utilize the same footpegs. The step bracket part number is 50611-MEN-B10.

A correct kickstand makes the CRF450RX off-road prepared. For racers needing to take away it for various causes, the CRF450R footpeg bracket is a direct match. Each bikes make the most of the identical footpegs. The step bracket half quantity is 50611-MEN-B10. (Mark Kariya/)

Standard equipment skid plates and steel head pipes are always a good idea for closed-course off-road racing models.

Commonplace gear skid plates and metal head pipes are all the time a good suggestion for closed-course off-road racing fashions. (Mark Kariya/)

Black D.I.D DirtStar rim holding the 18-inch Dunlop Geomax AT81 rear tire.

Black D.I.D DirtStar rim holding the 18-inch Dunlop Geomax AT81 rear tire. (Mark Kariya/)

2023 Honda CRF450RX Specs

MSRP: $9,899
Engine: SOHC, liquid-cooled single-cylinder; 4 valves/cyl.
Displacement: 449cc
Bore x Stroke: 96.0 x 62.1mm
Compression Ratio: 13.5:1
Transmission/Remaining Drive: 5-speed/chain
Gas System: EFI w/ 44mm throttle physique
Clutch: Moist, multiplate; hydraulic actuation
Body: Aluminum twin-spar
Entrance Suspension: Showa 49mm coil-spring fork, compression damping and rebound damping adjustable; 12.2 in. journey
Rear Suspension: Showa shock, spring preload, excessive/low-speed compression damping, and rebound damping adjustable; 12.4 in. journey
Entrance Brake: Nissin 2-piston caliper, 260mm disc
Rear Brake: Nissin 1-piston caliper, 240mm disc
Tires, Entrance/Rear: Dunlop Geomax AT81; 90/90-21 / 120/90-18
Rake/Path: 27.1°/4.5 in.
Wheelbase: 58.1 in.
Floor Clearance: 13.2 in.
Claimed Seat Top: 38.0 in.
Gas Capability: 2.1 gal.
Claimed Moist Weight: 251 lb.
Availability: Now
Contact: powersports.honda.com