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2019 Honda CRF250RX

Chaparral Motorsports
May 23, 2018
(Press Release)

Based on Honda's successful 250cc motocrosser, the all-new CRF250RX is specially designed for closed-course off-road competition. Joining the CRF450RX in the quest for podiums in series like GNCC and WORCS, this off-road weapon features all of the same performance-driven features as the CRF250R, but adds off-road-specific features like a larger fuel tank, aluminum sidestand, and 18-inch rear wheel.

Ready for the biggest news the off-road riding community is going to hear this year? Introducing the all-new Honda CRF250RX, a high-performance trail/enduro machine built to exploit all the advantages a 250 has to offer. Bigger Baja bikes may get all the attention, but 250 riders know where their bikes really shine: on tight, technical trails that leave those big open-class riders panting and exhausted, while they use the light weight and maneuverability to flick through challenging terrain. So we've equipped the new CRF250RX with the same great engine and chassis as the CRF250R motocrosser, but added an 18-inch rear wheel, a bigger fuel tank, special suspension settings, a sidestand, and more. It's all about giving you the best bike in the class.

CRF250RX Key Features

Large-capacity, 2.2 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

Forged aluminum sidestand is designed to be lightweight yet strong

Sealed drive chain to withstand the elements

Suspension with settings dedicated to closed-course off-road use


High-performance, 249cc single-cylinder engine with dual-overhead-cam design and high rev limit, offering great performance

Finger rocker arm with Diamond Like Coating (DLC) maximizes valve lift while retaining a low engine height

Downdraft intake layout produces strong power and enables great throttle response by reducing resistance, thereby improving air-charging efficiency

Dual exhaust ports enable ideal air-charging efficiency

Cam profile, which is based on feedback on the CRF250R used by the Team HRC factory MX2 race team, provides strong off-corner acceleration

Intake- and exhaust-port geometry provides strong low-rpm engine power while also maintaining stellar top-end performance

44mm throttle body offers ideal low-rpm intake airflow for strong corner-exit performance

Honda's piston oil jet with five nozzle holes provides superior piston-cooling efficiency and reduced knocking, enabling a precise ignition-timing setting for optimum power delivery

Lightweight AC generator keeps weight to a minimum and minimizes friction losses

Electric-start standard for easy, fast engine startup

Easily selectable Standard, Smooth, and Aggressive riding modes enable easy tuning depending on rider preference or course conditions

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

Exclusive ECU settings for ideal engine performance and rideability in off-road situations


Lightweight aluminum frame with tapered main spars provides great rider feedback

Low center of gravity reduces front-end lift for strong acceleration

Renthal Fatbar® handlebar reduces steering-system weight, and flexes for comfort

Top triple clamp features two handlebar-holder locations for moving the handlebar rearward and forward by 26mm, ensuring rider comfort. When holder is turned 180 degrees, the handlebar can be moved an additional 10mm from the base position, resulting in four total unique handlebar positions

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

Engine guard allows excellent airflow, boosting engine-cooling performance

49mm Showa SPG coil-spring fork with dedicated settings for ideal handling and comfort in technical conditions experienced in off-road racing

Fork protectors have outstanding coverage for protection in off-road conditions

Black rims offer strong presence parked in the pits or out on the trail

Lightweight front-brake caliper uses pistons of different diameters (30mm and 27mm) for strong braking performance

Front-brake hose resists expansion for precise braking

Smooth bodywork layout eases rider movement

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

Dunlop Geomax AT81 tires provide optimum feel and traction in challenging riding conditions

Model CRF250RX
Type 249cc liquid-cooled single-cylinder four-stroke
Valve Train DOHC, four-valve; 33mm intake, titanium; 26mm exhaust, titanium
Bore x Stroke 70.9mm x 50.9mm
Compression Ratio 13.9:1
Induction Programmed fuel-injection system (PGM-FI); 44mm throttle bore
Ignition Full transistorized
Starter Push-button electric starter
Transmission Constant-mesh 5-speed return; manual
Clutch Multiplate wet (5 springs)
Final Drive #520 sealed chain; 13T/48T
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 80/100-21 w/ tube
Rear Dunlop Geomax AT81 110/100-18 w/ tube
Rake (Caster Angle) 27°18'
Trail 115mm (4.5 in.)
Length 86.0 in.
Width 32.6 in.
Height 49.7 in.
Ground Clearance 13.0 in.
Seat Height 37.8 in.
Wheelbase 58.5 in.
Fuel Capacity 2.25 gal.
Color Red
Curb Weight* 244 lbs.


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