2019 Honda CRF450RX:
Campaigned by JCR Honda’s Trevor Bollinger and Trevor Stewart in GNCC and WORCS competition, respectively, the CRF450RX is an off-road weapon fully prepared for earning trophies in closed-course off-road competition. For 2019, the bike inherits the same performance-enhancing features as the CRF450R, including key updates for lighter weight, added power, and enhanced handling performance. Add in off-road-specific features that help bring CRF450RX riders to podiums the country over, and you have a highly advanced off-road racer.
THE ULTIMATE ENDURO WEAPON.
Honda’s CRF450R is a dominant open-class MX machine. And the equivalent for all you enduro riders: the 2019 CRF450RX. It rocks all the features and upgrades of our latest CRF450R, but has some special touches that fine-tune it for enduro use. Like a bigger fuel tank. A sidestand. An 18-inch rear wheel. And special suspension settings. Along with the CRF450R, it gets an all-new chassis and swingarm, new fuel-injection settings that spray twice per cycle to better atomize the fuel, a special launch-control setting, new Renthal Fatbar and all the rest. We’ve never built an enduro bike this race-ready. And neither has anyone else.
2019 Honda CRF450RX Totalmotorcycle.com Key Features
HRC Launch Control
We’re talking about a special ECU program here: push the button to select the mode, hold the throttle open, release the clutch, and the CRF450RX will do the rest, launching you into the first turn with a big advantage. It turns your bike into a holeshot-seeking machine!
Kickstarting your bike is so 2016. By ditching the kickstarter entirely, our engineers can make the CRF450RX lighter. Electric starters and lithium-ion batteries are so light now and so good that putting them on a bike like this is a win/win combination. And winning is what a CRF450RX is all about.
Lighter Overall Weight
We shaved an additional 1.75 pounds from this year’s CRF450RX—a surprise considering how light this bike already is. Where did it come from? Mostly from eliminating the kickstart option, but weight is weight, and on a racebike less of it is almost always better.
260mm Front Brake
The CRF450RX’s large front-brake disc measures a whopping 260mm. You get great brake feel and a pattern that cuts down on weight. Front and rear brake-disc guards are part of the package too.
High-Capacity Resin Fuel Tank
For longer enduro loops, the CRF450RX features a bigger fuel tank that holds a full 2.25 gallons.
Engine Mode Select Button
This simple handlebar-mounted button lets you dial in engine power delivery character with a push of your thumb. Choose between Standard, Smooth and Aggressive, depending on course conditions.
449cc Unicam Engine
Honda’s Unicam cylinder heads combine the best of single- and double-overhead-cam designs. The configuration contributes to a compact engine that saves weight over a comparable dual-overhead-camshaft motor and also permits a narrow included valve angle. This flattens the combustion chamber to facilitate ignition flame propagation, allowing a high compression ratio. Since less space is taken up in the cylinder head, the camshaft sits lower in the head for a more compact engine and a lower center of gravity.
Dunlop Geomax Tires
The CRF450RX’s Dunlop Geomax tires are specially designed for enduro use. The AT81 tires are spec’d at 90/90-21 for the front and 120/90-18 for the rear. You read that right: the CRF450RX rolls on an 18-inch rear wheel.
Downdraft Fuel Injection
The CRF450RX features a downdraft intake tract and FI body to help increase both power and fuel-metering precision. It’s part of the reason the CRF450RX offers such explosive power and massive torque, especially out of the starting line and in the critical first 100 feet of the race to the first turn.
New Double-Spray Injector Settings
The CRF450RX’s fuel-injection system sprays twice per intake cycle. That helps increase fuel atomization without adding the weight or complexity of a second injector. The better fuel atomization means more power in the midrange and on overrev—you’ll feel it the first time you race.
New Longer Head Pipes
Lengthening the CRF450RX’s headpipes help give you better throttle response and top-end pull.
Cylinder Head Layout
The CRF450RX uses our latest finger-follower rocker design. The Unicam cylinder head remains one of the most efficient in the off-road world, giving you the design and performance of a double-overhead-cam layout but the compactness of a single-overhead-cam design.
13.5:1 Compression Ratio
The CRF450RX features a refined squish area that helps boost compression to an impressive 13.5:1. That means improved combustion efficiency for more power.
“In Mold” Graphics
With the all the time you’ll be spending in victory circle, you need to look your best. The 2019 CRF450RX has you covered. Our “in mold” graphics look great, and stay looking good longer.
New Programmable ECU
Want to fine-tune your CRF450RX’s power delivery to a specific riding style or course? It’s easier than ever with the 2019 CRF450RX’s programmable ECU.
A factory skid plate is light and offers the engine and lower-frame protection that a racer demands.
Showa Spring Fork
The 49mm Showa fork is specially tuned just for the CRF450RX, and features a conventional spring design that helps increase the CRF450RX’s front-suspension precision, handling and feel.
Next-Generation Aluminum Frame
The CRF450RX’s Next-Gen twin spar aluminum frame positions the rear shock’s mounting point lower, opening up the airbox area and contributing to a lower center of gravity for more holeshots. The frame geometry also helps improve traction, feeling and steering precision.
We’ve changed the way we build the CRF450RX’s swingarm this year, fine-tuning the flex to work with the new chassis and give you better rear traction and cornering precision.
New Frame Members
We’ve stiffened up the CRF450RX’s chassis to work better with the new swingarm. At the same time, we took some rigidity out of the rear subframe, to help maintain the bike’s overall balance and feel.
Twin-Muffler Exhaust System
The CRF450RX’s dual exhaust system is light, compact, and positioned close and low in the frame to take weight off the rear end and bring more mass to the bike’s center for improved handling. It also allows for more air flow, and that equals added horsepower.
New Renthal “Fatbar”
The new aluminum Renthal Fatbar features a new bend too. The old Honda “CR” bend was legendary for getting it right, and this new fat bar is even better. It’s the new standard of excellence—you’re gonna love it!
Flat Seat/Tank Junction
The CRF450RX features a flat seat/tank junction, including a titanium fuel tank. The superior ergonomics make it easier to move forward and back on the bike, increasing your control.
New Black Rims
They may not help you go faster, but the new black DID rims this year sure look good.
Real enduro bikes need a sidestand, and we’ve given the CRF450RX a great one. Tucked up high and out of the way, this forged alloy piece is just another example of how the CRF450RX gets it right.
Honda Broadens CRF Lineup with Expansive New-Model Launch
Largest performance off-road release yet includes new models for diverse applications
During a recent “CRF Collective” unveiling ceremony at Fox Racing headquarters, Honda announced its most far-reaching range of performance off-road models ever, expanding the group by three and significantly improving the four returning models. Leveraging the brand’s unparalleled experience in the manufacture of dirt bikes, Honda’s performance off-road lineup now includes CRF machines for riding applications including motocross, closed-course off-road, pure off-road, and even dual sport.
All seven models are based on the platforms of Honda’s revolutionary motocrossers, the CRF450R and CRF250R. Those two machines return for 2019 but with important updates, as does the closed-course off-road CRF450RX. In addition, Honda is offering a factory-replica version of its full-size motocrosser called the CRF450RWE (“Works Edition”). The trail-ready CRF450X is entirely new for 2019, and it’s joined by a road-legal CRF450L that enables customers to connect trails via asphalt. Finally, Honda is also introducing an all-new CRF250RX closed-course off-road machine.
“Honda’s history in off-road is something we’re very proud of, from the ’70s-era Elsinores, through the XRs of the ’80s and ’90s, to the post-millennial CRF models,” said Lee Edmunds, American Honda’s Manager of Motorcycle Marketing Communications. “For 2019, it’s exciting to build on that reputation with the most expansive lineup of CRF performance off-road models ever offered, and to reach a wide range of enthusiasts through motorcycles that are tailored to an equally diverse spectrum of riding environments. With this new lineup, there really is a CRF off-road performance machine for everyone.”
The trails are calling, and the all-new road-legal CRF450L answers, expanding customers’ off-road possibilities by enabling access to the best riding trails, even when that means connecting them via asphalt roads. Street legality is achieved via features like LED lighting, mirrors, and a dedicated exhaust system. Equally at home in the woods or desert, the CRF450L has a wide-ratio six-speed transmission for maximum adaptability, while a lightweight, 2.0-gallon tank offers great range. Compared to the CRF450R motocrosser, crank mass is up for tractability in technical conditions, where a large-capacity radiator keeps things cool.
For the 2019 model year, you don’t have to be Ken Roczen to enjoy a CRF450R with factory enhancements, as the new CRF450RWE features a number of upgrades based on the bikes in the Team Honda HRC race shop. Rocketing to the top step of the podium through the use of a specially designed cylinder head with hand-polished ports, Yoshimura titanium slip-on muffler, and special ECU settings, this new model offers increased low- and mid-range torque. It also features the same graphics as Roczen’s No. 94 race bike, including a Throttle Jockey factory seat cover. Upgraded black D.I.D LT-X rims are included, along with black triple clamps and a gold RK chain. Titanium nitride-coated fork legs and an updated, titanium nitride-coated shock shaft increase traction and bump absorption.
Already the industry’s top-selling motocrosser and the winner of the 2018 Daytona Supercross at the hands of MotoConcept’s Justin Brayton, the CRF450R receives a number of important updates for 2019. Better engine performance is achieved through a new combustion-chamber shape, as well as improved over-rev characteristics through a refined oil-management system. The frame and swingarm have been revised for optimized rigidity and weight reduction, while the braking system has been updated with a lightweight front brake caliper featuring a large-piston design. As a result of the weight-saving measures, the CRF450R is 1.76 lbs. lighter than its predecessor. For added performance and increased comfort, the 2019 model features new ECU settings, HRC launch control, a Renthal Fatbar® handlebar and adjustable handlebar position. Black rims and redesigned fork protectors are also new. This is how you convert the “Absolute Holeshot” into moto wins.
Having featured heavily in Honda-mounted teams winning 20 of the last 21 Baja 1000s, the CRF450X gets a complete overhaul for 2019, based on the modern CRF platform but with off-road-appropriate features. A true off-road machine that’s ready for racing or trail riding, this model features a headlight, taillight, and side stand, as well as an 18″ rear wheel and lightweight 2.0-gallon fuel tank. For maximum versatility in challenging terrain, the CRF450X also features a 49mm Showa fork with dedicated settings, wide-ratio six-speed transmission, and higher crank mass than the CRF450R.
Currently campaigned by JCR Honda’s Trevor Bollinger and Trevor Stewart in GNCC and WORCS competition, respectively, the CRF450RX inherits the same performance-enhancing features of the 2019 CRF450R, including an updated cylinder head and refined oil-management system, while still featuring off-road-specific features like a 2.2-gallon resin fuel tank, 18-inch rear wheel, and aluminum side stand. Suspension is specially tailored to the CRF450RX and uses low-friction fork oil. For added performance and increased comfort, the 2019 model features new ECU settings, HRC launch control, a Renthal Fatbar handlebar, and adjustable handlebar position. Black rims and redesigned fork protectors are also new.
Based on Honda’s successful 250cc motocrosser, the all-new CRF250RX joins the CRF450RX as a weapon for closed-course off-road competitions throughout America. Equipped with a larger-capacity, 2.2-gallon resin fuel tank, 18-inch rear wheel, and aluminum side stand, the RX makes quick work of challenging situations, its dedicated suspension and ECU settings helping the rider work through even the toughest trail sections. As with the CRF250R, HRC launch control, a Renthal Fatbar handlebar, and black rims are standard.
Newly introduced in 2018, the CRF250R has seen the GEICO Honda and TiLube Honda teams earn multiple wins in AMA Supercross and Arenacross competition, respectively, while also achieving success in amateur national races. For 2019, the model is revised with increased low-to-midrange engine performance for improved corner exiting. Inspired by the factory version, the Double Overhead Cam engine features updated cam profiles and intake- and exhaust-port profiles, a 50mm shorter right exhaust pipe, and a 2mm smaller throttle body. Riders can select from three engine modes for ideal performance depending on conditions, while HRC launch control has been adopted for improved race-start performance. A Renthal Fatbar handlebar sits in a four-position-adjustable top clamp, while the braking system has been updated with a lighter, CRF450R-inspired caliper with larger piston for optimum braking performance. Black rims are standard.
CRF150R / CRF150RB
Raced by Amsoil Honda hotshot Hunter Yoder on the amateur national circuit, Honda’s smallest motocross machine returns for 2019, featuring a Unicam four-stroke engine that offers a spread of ample, useable power and torque across the rev range. Suspension duties are handled by Showa, with a 37mm inverted fork and Pro-Link rear link system. In addition to the standard version, Honda offers the CRF150RB, which features larger wheels, a taller seat, a longer swingarm, and more rear-suspension travel.
2019 Honda CRF450RX Totalmotorcycle.com Features and Benefits
•Large-capacity, 2.25 gallon resin fuel tank for completing long closed-course off-road loops
•18-inch rear wheel to enable taller tire sidewalls for improved traction in technical conditions
•Sealed drive chain to withstand the elements
•Suspension with settings dedicated to closed-course off-road use
•449cc single-cylinder engine with Unicam® cylinder head, downdraft intake tract, and electric start
•Updated cylinder head design, with specific changes near the exhaust ports, achieves improved exhaust efficiency and contributes to increased power across the rev range
•Revised clutch lifter and pressure plate allows optimum oil supply to clutch plates and friction discs, resulting in enhanced durability
•New scavenge pump design features two 12mm pumps, up from a single 16mm pump, for increased lubrication and reduced friction inside the engine, improving peak performance and enhancing over-rev characteristics
•All-new piston oil jet uses five nozzle holes and a refined pattern to improve cooling efficiency and reduce knocking
•Shift sensor adopted to establish an ignition map for each gear, enabling optimum running
•Exclusive ignition timing settings for ideal engine performance and rideability in off-road situations
•Utilizing the space gained by eliminating the kick starter and using a compact electric starter, a new exhaust features a larger pipe diameter and optimized design at the branching location for increased power. Previously 31.8mm, the right and left pipes are now 35mm and 43mm, respectively. In addition, the total tube length (from exhaust port to muffler end) is up 98mm on the right and 187mm on the left.
•Selectable HRC launch control offers riders great start performance in closed-course off-road race situations
•Updated Standard, Smooth and Aggressive riding modes enable easy tuning depending on rider preference or conditions
•Optimized frame for improved traction and cornering feel, as well as reduced weight
•Swingarm is redesigned to be lighter and have appropriate rigidity, endowing the 2019 CRF450RX with great handling and traction
•Specially tuned Showa 49mm fork uses low-friction oil for optimum feel
•Rear suspension uses dedicated-rate, 52 N/mm spring for enhanced comfort and performance in closed-course off-road races
•Revised shock linkage works with all-new swingarm to provide optimum performance over bumps
•Forged aluminum side stand is designed to be lightweight yet strong, with a new design to accommodate changes to the 2019 model-year swingarm
•New, lighter front brake caliper uses a pair of 30mm and 27mm pistons, versus identical 27mm pistons, for added braking performance
•Updated front brake hose has reduced expansion for more precise braking
•Top triple clamp features two handlebar-holder locations for moving the handlebar back and forth by 26mm, ensuring rider comfort. When handlebar holder is turned 180 degrees, the handlebar can be moved an additional 10mm from the base position, resulting in four total unique riding positions.
•New Renthal Fatbar® handlebar is positioned 15mm lower than in 2018 for a more active riding position, while also contributing to lightweight steering system
•Newly shaped footpegs are 20% lighter and shed mud more easily, giving the rider great feel and confidence in challenging riding conditions
•2.2 gallon resin fuel tank is durable and offers optimum range for long closed-course off-road races
•Redesigned fork protectors offer improved coverage
•Black rims offer strong presence, parked in the pits or out on the trail
•In-mold graphics last long and are resistant to peeling caused by washing or abrasion
•Dunlop Geomax AT81 tires provide optimum feel and traction in challenging riding conditions
2019 Honda CRF450RX – Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $9599 USD
Canada MSRP Price: $ CDN
Europe/UK MSRP Price: £ GBP (On The Road inc 20% Vat)
Australia MSRP Price: See Dealer for Pricing in AUS
|Type||449.7cc liquid-cooled 10º single-cylinder four-stroke|
|Valve Train||Unicam® OHC, four-valve; 10.0mm intake, steel; 8.8mm exhaust, steel|
|Bore x Stroke||96.0mm x 62.1mm|
|Induction||Programmed fuel-injection system (PGM-FI); 46mm throttle bore|
|Starter||Push-button electric starter|
|Transmission||Constant-mesh 5-speed return; manual|
|Clutch||Multiplate wet (6 springs)|
|Final Drive||#520 sealed chain; 13T/50T|
|Front||49mm fully adjustable leading-axle inverted telescopic Showa coil-spring fork|
|Rear||Pro-Link system; fully adjustable Showa single shock|
|Front||2-piston caliper (30mm, 27mm) hydraulic; single 260mm disc|
|Rear||1-piston caliper hydraulic; single 240mm disc|
|Front||Dunlop Geomax AT81 90/90-21 w/ tube|
|Rear||Dunlop Geomax AT81 120/90-18 w/ tube|
|Rake (Caster Angle)||27°25’|
|Trail||116mm (4.6 in.)|
|Ground Clearance||12.9 in.|
|Seat Height||37.8 in.|
|Fuel Capacity||2.25 gal.|
|Curb Weight*||255 lbs.|
*Includes all standard equipment, required fluids and full tank of fuel—ready to ride Specifications subject to change
2019 Honda CRF450RX – Totalmotorcycle.com Canada Specifications/Technical Details
2019 Honda CRF450RX – Totalmotorcycle.com European Specifications/Technical Details
2019 Honda CRF450RX – Totalmotorcycle.com Australian Specifications/Technical Details
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).