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2019 Honda CRF450X

Chaparral Motorsports
May 23, 2018
(Press Release)

Having featured heavily in Honda-mounted teams winning 20 of the last 21 Baja 1000s, the CRF450X gets a complete overhaul for 2019, injecting the DNA of the modern CRF platform into a true off-road machine suitable for year-round racing and trail riding. With off-road appropriate features like a sidestand, 18-inch rear wheel, headlight, and sealed chain, the CRF450X is ready for desert expanses or tight woods.

Honda's CRF450X has long been the choice of Baja champions and woods pros-and riders who want the light weight and awesome power of a premium MX bike, but who also know that while MX machines are perfect for 30-minute motos, out in the big, bad, open-class real world you need a machine that can do more. That all-around excellent performance is what's made the CRF450X always stand out, whether it's in the winner's circle in La Paz or out on your local trails. And for 2019, the CRF450X has been completely overhauled from the ground up-with lots of new upgrades, including an all-new aluminum frame and . . . wait for it . . . a six-speed transmission!

Key Features

Lightweight, 2.0 gallon titanium fuel tank offers good range

Aluminum sidestand facilitates trailside stops

18-inch rear wheel enables tall tire sidewall for optimum traction in technical conditions

Lightweight, compact digital meter with black characters on a white liquid-crystal background is easily legible while riding

Off-road-ready, emissions-compliant muffler with spark arrestor

Endless sealed chain withstands the elements

Lightweight, compact halogen headlight and LED taillight extend riding time


449.7cc Unicam® engine specially tailored for off-road riding

Finger rocker arm contributes to compact layout, while its dedicated design attains off-road-appropriate power characteristics. DLC surface treatment reduces friction

Dedicated valve timing for smooth power delivery in technical riding

High crank inertia (up 12% over CRF450R) for tractable power delivery in technical terrain

12.0:1 compression ratio

New piston with three-ring design

Wide-ratio six-speed transmission is ready for a wide variety of off-road terrain. Construction from high-strength material ensures durability in demanding conditions

Special clutch design enables light lever pull. Primary damper mechanism with friction springs suppresses engine torque fluctuations for smooth running

Large-capacity radiators with high heat-exchange efficiency for strong performance in demanding off-road conditions

ECU with dedicated settings

Specially developed exhaust system with optimized pipe length and diameter for excellent responsiveness at low rpm


Aluminum twin-spar frame designed for nimble yet stable handling on trails

Subframe designed for optimum rigidity during off-road riding

49mm Showa fork with dedicated settings for challenging terrain

CRF450R-inspired front brake but with dedicated master cylinder and hose for off-road-appropriate braking performance

Lightweight lithium-ion battery with increased capacity compared to CRF450R, to power lighting

Front and rear sprockets feature damper system for smooth, quiet running

Fuel-tank cap with cut-off valve prevents fuel from flowing out of tank if the bike is on its side

Easily accessible electronic component box on left side of frame

Gray metallic Renthal handlebar with red pad

Compact, lightweight handlebar switches

In-mold graphics last long and are resistant to peeling caused by washing or abrasion

Fork protectors are shaped to prevent damage in off-road riding

Dunlop MX52 tires provide excellent traction and feel in wide range of conditions

Model CRF450X
Type 449.7cc liquid-cooled 10º single-cylinder four-stroke
Valve Train Unicam® OHC, four-valve
Bore x Stroke 96.0mm x 62.1mm
Compression Ratio 12.0:1
Induction Programmed fuel-injection system (PGM-FI); 46mm throttle bore
Ignition Full transistorized
Starter Push-button electric starter
Transmission Constant-mesh 6-speed return; manual
Clutch Multiplate wet (6 springs)
Final Drive #520 sealed chain
Front 49mm fully adjustable leading-axle inverted telescopic Showa coil-spring fork
Rear Pro-Link system; fully adjustable Showa single shock
Front 2-piston hydraulic; single 260mm disc
Rear 2-piston hydraulic; single 240mm disc
Front Dunlop Geomax AT81 80/100-21 w/ tube
Rear Dunlop Geomax AT81 110/100-18 w/ tube
Rake (Caster Angle) 28°06'
Trail 116mm (4.6 in.)
Length 85.9 in.
Width 32.6 in.
Height 50.1 in.
Ground Clearance 12.7 in.
Seat Height 37.4 in.
Wheelbase 58.8 in.
Fuel Capacity 2.01 gal.
Color Red
Curb Weight* 275 lbs.

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