2019 Honda CRF450RX

$9,599.00


Availability
Brochure
Year
2019
Manufacturer
Honda
Model
CRF450RX

Overview

Description

Specifications subject to change without notice. Honda's fuel economy estimates are based on EPA exhaust emission measurement test procedures and are intended for comparison purposes only. Your actual mileage will vary depending on how you ride, how you maintain your vehicle, weather, road conditions, tire pressure, installation of accessories, cargo, rider and passenger weight, and other factors. Suggested Retail Price (SRP) excludes destination charge. Visit powersports.honda.com to view applicable destination charge amount.



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.

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!
  • Electric Start: 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.
  • 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.
Engineering
  • 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!
  • Electric Start: 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.
Performance
  • 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.
  • Skid Plate: A factory skid plate is light and offers the engine and lower-frame protection that a racer demands.
Handling
  • 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.
  • New Swingarm: 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.
Comfort
  • 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.
  • Sidestand: 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.
Engine
  • Engine Type: 449cc liquid-cooled single-cylinder four-stroke
  • Bore And Stroke: 96 mm x 62.1 mm
  • Compression Ratio: 13.5:1
  • Valve Train: Unicam four-valve; 38 mm intake, titanium; 31 mm exhaust, Steel
  • Induction: Programmed Fuel Injection (PGM-FI), 46 mm downdraft throttle body
  • Ignition: DC-CDI
Drive Train
  • Transmission: Close-ratio five-speed
  • Final Drive: #520 Chain; 13T/50T
Chassis / Suspension / Brakes
  • Front Suspension: 49 mm leading-axle inverted telescopic Showa coil-spring fork with rebound and compression damping adjustability
  • Rear Suspension: Pro-Link Showa single shock with adjustable spring preload, rebound and compression damping adjustability
  • Front Brake: Single 260 mm disc with twin-piston caliper
  • Rear Brake: Single 240 mm disc
  • Front Tire: Dunlop Geomax AT81 90/90-21
  • Rear Tire: Dunlop Geomax AT81 120/90-18
Dimensions
  • Wheelbase: 58.2 in.
  • Rake (Caster Angle): 27 deg. 25 in.
  • Trail: 4.6 in.
  • Seat Height: 37.8 in.
  • Ground Clearance: 12.9 in.
  • Fuel Capacity: 2.25 gal.
  • Curb Weight: 255 lb. (Includes all standard equipment, required fluids and full tank of fuel—ready to ride.)
Other
  • Available Colors: Red
  • Model ID: CRF450RX
NOTES:
Honda’s fuel economy estimates are based on EPA exhaust emission measurement test procedures and are intended for comparison purposes only. Your actual mileage will vary depending on how you ride, how you maintain your vehicle, weather, road conditions, tire pressure, installation of accessories, cargo, rider and passenger weight, and other factors. Suggested Retail Price (SRP) excludes destination charge. Visit powersports.honda.com to view applicable destination charge amount.

Specs

Engine

Engine Type
Single-cylinder four-stroke
Displacement
449cc
Bore and Stroke
96 mm x 62.1 mm
Cooling
Liquid
Compression Ratio
13.5:1
Fuel System
Programmed Fuel Injection (PGM-FI), 46 mm downdraft throttle body
Ignition
DC-CDI

Chassis

Front Suspension
49 mm leading-axle inverted telescopic Showa coil-spring fork with rebound and compression damping adjustability
Front Brakes
Single 260 mm disc with twin-piston caliper
Front Tire
Dunlop Geomax AT81 90/90-21
Rear Suspension
Pro-Link Showa single shock with adjustable spring preload, rebound and compression damping adjustability
Rear Brakes
Single 240 mm disc
Rear Tire
Dunlop Geomax AT81 120/90-18

Dimensions

Dry Weight
Curb Weight: 255 lb.
Fuel Capacity
2.25 gal.
Wheelbase
58.2 in.
Ground Clearance
12.9 in.
Seat Height
37.8 in.
Trail
4.6 in.
Rake
27 deg. 25 in.

Transmission

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

General

Colors
Red

Related Products