2019 Honda CRF450R

Chaparral Motorsports
|
May 23, 2018
(Press Release)

The industry's best-selling motocross bike, victor at the 2018 Daytona Supercross at the hands of Team MotoConcept Honda's Justin Brayton, and also winner of four media shootouts, the CRF450R receives a host of updates for 2019, making it lighter and more powerful. Because converting the "Absolute Holeshot" into moto wins requires more than just added performance, rider comfort has been increased through the addition of adjustable mounting positions for the new Renthal Fatbar® handlebar. With the 2019 CRF450R's all-new black rims and its unique, in-mold graphics, celebrating on the podium never looked so good.

Heat after heat, race after race, Honda's CRF450R is hooking up riders like never before. If there's ever a machine that's given you an almost uncanny holeshot advantage, this is it. And for 2019, we've taken this awesome open-classer and made it even better. How? For starters, it's even lighter. Then there's an all-new chassis and swingarm, designed to work together for increased traction and cornering. The engine features longer head pipes for better throttle response and top-end pull. New fuel-injection settings spray twice per cycle to better atomize the fuel. And for the first time ever, there's a special launch-control setting, so it's easier than ever to grab the holeshot and hang on to your lead. What else is new? Plenty. The 2019 CRF450R-better than ever.

Looking for the ultimate 450? Then check out our new CRF450R Works Edition. You get all the improvements of this year's bike plus a special hand-ported cylinder head, black DID LT-X rims, an exclusive Yoshimura muffler, titanium nitride-coated lower fork legs and shock shaft, an RK gold chain, special ECU settings, black triple clamps, revalved suspension, a factory-spec gripper seat, and full-on HRC decals. The only thing missing is a factory contract!

Engine/Drivetrain


449cc single-cylinder engine with Unicam® cylinder head, downdraft intake tract, and electric start offer unparalleled "Absolute Holeshot" performance

Updated cylinder-head design, with changes near the exhaust ports, achieves improved exhaust efficiency and contributes to increased power across the rev range

Revised clutch lifter and pressure plate allow 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 in 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, enabling a precise ignition-timing setting for optimum power delivery

Shift sensor adopted to establish an ignition map for each gear, enabling optimum running

Utilizing the space gained by eliminating the kick 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, total tube length (from exhaust port to muffler end) is up 98mm on the right and 187mm on the left.

Selectable HRC launch control provides a steady stream of torque for excellent performance on race starts

Updated Standard, Smooth, and Aggressive riding modes enable easy tuning depending on rider skill or conditions

Chassis/Suspension


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 CRF450R with great handling and traction

Fork uses revised settings and low-friction oil for improved performance and handling

Revised shock linkage works with all-new swingarm to provide optimum performance over bumps

Mimicking the race team's setup, a 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 has two handlebar-clamp locations for moving the handlebar back and forth by 26mm. With reversible handlebar clamp enabling an additional 10mm of adjustment from the base position, there are a total of four different handlebar positions

New black Renthal Fatbar handlebar is positioned 15mm lower than in 2018 for a more active riding position, while also contributing to light steering feel

Newly shaped footpegs are 20% lighter and shed mud more easily, giving the rider great feel and confidence in all riding conditions

Lightweight, compact 1.66 gallon titanium tank keeps weight to a minimum

Redesigned fork protectors have improved coverage

Black rims deliver a strong presence on and off the track

Minimal lines and gaps in the plastic panels result in a smooth surface, facilitating riding-position changes

New front number plate design accommodates handlebar in any of the four available positions

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

Dunlop Geomax MX3S tires offer excellent grip







































































































































Model CRF450R
ENGINE
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
Compression Ratio 13.5:1
Induction Programmed fuel-injection system (PGM-FI); 46mm throttle bore
Ignition Full transistorized
Starter Push-button electric starter
Transmission Constant-mesh 5-speed return; manual
Clutch Multiplate wet (6 springs)
Final Drive #520 chain; 13T/49T
SUSPENSION
Front 49mm fully adjustable leading-axle inverted telescopic Showa coil-spring fork
Rear Pro-Link system; fully adjustable Showa single shock
BRAKES
Front 2-piston caliper (30mm, 27mm) hydraulic; single 260mm disc
Rear 1-piston caliper hydraulic; single 240mm disc
TIRES
Front Dunlop Geomax MX3S 80/100-21 w/ tube
Rear Dunlop Geomax MX3S 120/80-19 w/ tube
MEASUREMENTS
Rake (Caster Angle) 27°22'
Trail 116mm (4.6 in.)
Length 85.9 in.
Width 32.6 in.
Height 49.6 in.
Ground Clearance 12.9 in.
Seat Height 37.8 in.
Wheelbase 58.4 in.
Fuel Capacity 1.66 gal.
Color Red
Curb Weight* 247 lbs.

Back to Top